xenial (1) fd.1.gz

Provided by: fdclone_3.01b-1build1_amd64 bug

NAME

       fd - file & directory maintenance tool

SYNOPSIS

       fd [ -abCefhiklmNnPrSsTtuvx ] [ -NAME=value ] [ directory [ directory2 ...  ]]
       fdsh [ -abCcefhiklmNnPrSsTtuvx ] [ args ]

DESCRIPTION

       Fd is a file & directory maintenance tool considered for the text terminals on general UNIX.  It aims for
       a clone of the same named utility which is made for the PC/AT compatible machine and PC-9800 series.   In
       fact, it is upper compatible functionally.

       Fd  shows  the  browser  screen  listing files when you have invoked it.  You can input some key which is
       bound each command, to execute various operations.

       (In the following description, (UNIX) means that the operation is implemented only on  UNIX  version  and
       not  effective  on  MS-DOS version.  As well as it, (DOS) means that the operation is implemented only on
       MS-DOS version.)

   Options
       The command line option is used for setting internal shell operations and setting the internal  variables
       described  below.   You  can use any variable name as the internal variable, but fd can accept only those
       which are described in the below section of ENVIRONMENT VARIABLES.  If you specify directory, the current
       directory  is  moved to the directory initially.  If you specify directory2 ..., the split window mode is
       invoked, and the current directories of the supplemental windows are moved to the each directory.

       The following options are available for the internal shell.

       -c string
              Commands described by string are executed and exit immediately.  It is effective only when  it  is
              invoked as fdsh.

       -i     If  the  -i  flag  is  present  or  if  the  standard input/output is a terminal, the shell is the
              interactive shell.

       -s     If the -s flag is present or if no args is specified, commands for the shell  are  read  from  the
              standard input.  Any remaining argument specifies the positional parameter.

       -r     The shell is a restricted shell.  Specifically, the following operations are disallowed.
                 changing the current directory
                 setting the value of $PATH, $SHELL and $ENV
                 specifying command names include /
                 redirecting output (> and >>)
                 IN_DIR         OUT_DIR        LOG_TOP
                 LOG_DIR        ATTR_FILE      COPY_FILE
                 MOVE_FILE      DELETE_FILE    DELETE_DIR
                 RENAME_FILE    MAKE_DIR       WRITE_DIR
                 TREE_DIR       BACKUP_TAPE    EDIT_FILE
                 UNPACK_FILE    PACK_FILE      LOG_TREE
                 COPY_TREE      MOVE_TREE      UNPACK_TREE
                 FIND_DIR       ATTR_DIR
              When invoked as rfd or rfdsh, it becomes this restricted shell automatically.

       -l     The shell is a login shell.

       -N     Reading the initial configuration files is omitted.

       In addition, the options described below in the description of set the builtin command are available.

   Screen Layout
       Fd  has  the  3 major screen modes.  In the browser screen, you can select from the file list and execute
       each command.  In the archive browser screen,  files  in  the  archive  file  are  listed  separately  by
       directory,  and  you  can  browse as well as the browser screen.  In the tree screen, you can move on the
       directory tree and select the directory path.

       In all screen modes, each 3 lines on the top/bottom of the screen are used for the various information of
       fd.  The top information lines sometimes become 4 lines.  The screen layout is the following.

       line#     Description

       1         The title line.  The clock at the right end is updated every 10 seconds.

       2         The  information  line.  It displays information in this order: the current page (and the total
                 pages), the number of marks (ant the total marks), the sorted type, the pattern string for file
                 search.

       3         The  path  line.   It  displays  the fullpath of the current directory.  In the archive browser
                 screen, it displays the fullpath of the archive file and the current path in the archive.

       2 (optional)
                 The file size information line.  It displays  the  total  size  of  the  marked  files  in  the
                 directory  (and  the total size of all files), the total capacity and the free size of the file
                 system including the current directory.  This line appears by SIZEINFO  the  internal  variable
                 setting.   When  this line is displayed, The information line and the path line are displayed 1
                 line under each.

       bottom - 2
                 The stack line.  It displays files temporarily which you push in stack, when arranging files.

       bottom - 1
                 The function line.  It displays the operations of function keys.

       bottom    The status line.  It displays the status of the file on the cursor position.  It also  displays
                 warning messages when command is executed with some troubles.

   Internal Commands
       You  can  use the following internal commands on fd.  While any user can change the key binding for these
       internal commands, here shows the default key binding.  The identifier is used when it is  executed  from
       the command line of EXECUTE_SH command, and when the user defines the key binding.

       Identifier          Command                       Key

       CUR_UP              Move a cursor up              Up
       CUR_DOWN            Move a cursor down            Down
       CUR_RIGHT           Move a cursor right           Right
       CUR_LEFT            Move a cursor left            Left
       ROLL_UP             Turn ahead to the next page   PageDown
       ROLL_DOWN           Turn back to the prev. page   PageUp
       CUR_TOP             Move a cursor top             Beg(<)
       CUR_BOTTOM          Move a cursor bottom          Eol(>)
       FNAME_RIGHT         Shift right a filename        (
       FNAME_LEFT          Shift left a filename         )
       ONE_COLUMN          Change layout into 1 column   1
       TWO_COLUMNS         Change layout into 2 columns  2
       THREE_COLUMNS       Change layout into 3 columns  3
       FIVE_COLUMNS        Change layout into 5 columns  5
       MARK_FILE           Mark a file                   Tab
       MARK_FILE2          Mark and move down            Space
       MARK_FILE3          Mark and move in a page       ^Space(^@)
       MARK_ALL            Mark all files                Home(+)
       MARK_REVERSE        Mark all files reversely      End(-)
       MARK_FIND           Mark the matched files        
       IN_DIR              Change to a sub directory     Return
       OUT_DIR             Change to a parent directory  Bs
       LOG_TOP             Change to a root directory    \
       REREAD_DIR          Reread the current directory  ^L
       PUSH_FILE           Push a file to the stack      Del(])
       POP_FILE            Pop a file from the stack     Ins([)
       LOG_DIR             Change to a logical directory F1(l)
       EXECUTE_FILE        Execute a file                F2(x)
       COPY_FILE           Copy a file                   F3(c)
       DELETE_FILE         Delete a file                 F4(d)
       RENAME_FILE         Rename a file                 F5(r)
       SORT_DIR            Sort the current directory    F6(s)
       FIND_FILE           Find files                    F7(f)
       TREE_DIR            Display the tree screen       F8(t)
       EDIT_FILE           Edit a file                   F9(e)
       UNPACK_FILE         Unpack a file                 F10(u)
       ATTR_FILE           Change a file attribute       F11(a)
       INFO_FILESYS        Display a file system info.   F12(i)
       MOVE_FILE           Move a file                   F13(m)
       DELETE_DIR          Delete a directory            F14(D)
       MAKE_DIR            Make a directory              F15(k)
       EXECUTE_SH          Execute a child process       F16(h)
       WRITE_DIR           Write a displayed directory   F17(w)
       BACKUP_TAPE         Backup into a tape            F18(b)
       VIEW_FILE           View a file                   F19(v)
       PACK_FILE           Pack a file                   F20(p)
       LOG_TREE            Change directory with tree    L
       COPY_TREE           Copy a file with tree         C
       MOVE_TREE           Move a file with tree         M
       UNPACK_TREE         Unpack a file with tree       U
       FIND_DIR            Find a file recursively       F
       ATTR_DIR            Change attributes recursively A
       SYMLINK_MODE        Switch the symbolic link mode S
       FILETYPE_MODE       Switch the file type symbol   T
       DOTFILE_MODE        Switch the dot file display   H
       FILEFLG_MODE        Switch the file flag display  O
       LAUNCH_FILE         Invoke the launcher           Return
       SEARCH_FORW         Search forward a file         ^S
       SEARCH_BACK         Search backward a file        ^R
       SPLIT_WINDOW        Split into the windows        /
       NEXT_WINDOW         Change to the next window     ^
       WIDEN_WINDOW        Widen the current window      W
       NARROW_WINDOW       Narrow the current window     N
       KILL_WINDOW         Kill the current window       K
       EDIT_CONFIG         Invoke the customizer         E
       HELP_MESSAGE        Display a help screen         ?
       QUIT_SYSTEM         Quit from fd                  Esc(q)

       WARNING_BELL        Bell for warning
       NO_OPERATION        Do nothing

       The last 2 internal commands are used when you want change the default key binding to cancel.

   Internal Commands Description
       The  detail  of  each  internal  command  is  the following.  Internal commands with similar function are
       described together.

          Move cursor
               Move a cursor.

          Turn page
               Turn to the previous/next page, when files are not completely held in a screen.  Also if you  try
               to move out of the page with Cursor move, the page will be turned.

          Move to the top/bottom
               Move  a  cursor  to  the top/bottom of the file list.  When the list is not held in a screen, the
               page is turned.

          Shift filename
               Shift the displayed string of filename on the cursor position, when the filename is  longer  than
               the prepared column width.  It is displayed as shifted to right/left by 1 character.  The display
               of the status line is also shifted simultaneously.

          Change layout
               Change the number of columns into each value.  There are usually 2 columns per  screen.   As  the
               column width per file is changed according to the number of columns, the displayed information is
               also changed.

          Mark file
               Mark the file on the cursor position.  You cannot mark any directory.  [Space]  marks  and  moves
               down  a  cursor.  [^Space] also marks and moves down a cursor, but doesn't turn the page.  [Home]
               marks all the files, [End] marks all the files reversely.  [] additionally marks the file  which
               matches the wildcard.  You must input the wildcard string whenever you push [].

               Marked  files are used as the target of ATTR_FILE, COPY_FILE, DELETE_FILE, MOVE_FILE, UNPACK_FILE
               and the user defined command macros.

          Change directory
               [Return] changes the current directory to the directory on the cursor position.  If you  want  to
               change  it  to  the  parent  directory,  you  should  move  a cursor to the file of ".." and push
               [Return], or simply push [Bs].  [\] changes the current directory to the root directory.

          Push/pop file stack
               [Del] pushes the file on the cursor position to the file stack, and temporarily deletes the  file
               from the file list screen.  You can push files to the file stack up to 5 files.

               [Ins]  pops  the  file from the file stack and insert it on the cursor position.  The last pushed
               file is popped first.  But this order is  expediently  displayed  in  fd,  and  it  is  reset  by
               Directory move.

          Redraw screen
               Redraw  the file list screen by rereading the information of the current directory.  It is useful
               when some other process add/delete files, or when something break the screen display.

               Moreover, when you use the terminal which doesn't raise SIGWINCH signal at  changing  the  screen
               size  (like  kterm(1)  on  HP-UX etc.), you must intentionally redraw after you change the screen
               size.

          Change logical directory (Logdir)
               Change the current directory to the inputted pathname.  When you input the pathname which  starts
               with '/', it means not the relative move but the absolute move.

               When  you input the pathname ".", the pathname of the current directory is adjusted into absolute
               expression.  Except this case, the current directory always is shown as the virtual pathname,  by
               reason  of  a  link  and  so  on.   When  you input the pathname "?", you can move to the current
               directory when fd was invoked.  When you input the pathname "-", you can move to the last visited
               directory.

               Moreover,  When you input the pathname "@" in floppy drive, you can move to the directory on UNIX
               file system, where you existed before moving to floppy drive.  (UNIX)

               (Note: This command is called as "Loddsk" in the original  FD  on  MS-DOS,  which  is  short  for
               "LOGical  DiSK  drive".   This  "logical"  means  the drive name prefixed to pathnames, and it is
               virtually named against "physical disk drive".  On UNIX, since "logical disk drive"  never  means
               pathname  nor  directory, this command name "Change logical directory" is not suitable.  But this
               name is expediently inherited from the original version.)

          Execute file (eXec)
               Execute the file on the cursor position with some parameters, as the child process.   The  cursor
               position in command line exists after the filename in case of the executable file, and before the
               filename except it.  You should fill suitable parameters or  command  name  in  each  case.   The
               up/down cursor keys can provide the command history which you executed before.

               On  MS-DOS  version, the LFN form filename in the command line which is quoted with the quotation
               mark " is automatically replaced into 8+3 form filename before execution.   In  this  case,  when
               there  is the filename described by the string quoted with ", this string is always replaced into
               8+3 form filename after deleting ", otherwise it is never replaced including ".

          Copy file (Copy)
               Copy the file on the cursor position to  the  specified  directory.   When  the  cursor  position
               indicates  a  directory,  its  contents  are copied recursively.  When some files are marked, the
               target is not the file on the cursor position but the marked files.

               When the same named file exists in the  destination,  you  can  select  the  operation  from  the
               following:    "Update    (by    timestamp)",    "Rename   (each   copied   file)",   "Overwrite",
               "Not_copy_the_same_name", "Forward".  If you select "Forward", you should specify  the  directory
               as  the  destination  to forward.  All files which have the same names are moved to the specified
               directory.

          Delete file (Delete)
               Delete the file on the cursor position.  No directory  can  be  deleted.   When  some  files  are
               marked, the target is not the file on the cursor position but the marked files.

               When you don't have write permission on the file, you are confirmed for security.

          Rename file (Rename)
               Rename the file on the cursor position.  You cannot rename to the same name as any existent file.
               When you specify the pathname with some directory name, it is also moved to the directory.

          Sort file (Sort)
               Sort files in the current directory.   You  can  select  the  sorted  type  from  the  following:
               "fileName",   "Extension",   "Size",   "Timestamp",  "Length  (of  filename)",  and  specify  "Up
               (incremental order)" or "Down (decremental order)".  When the sorted type before sorting  is  the
               one  except  "No  chg (not sort)", the choice will include "No chg".  When you sort after sorting
               another sorted type, the previous sorted result is based in sorting.  This sorting has a priority
               except  specified  type,  the  directory  is always precedes any file, except for the case of "No
               chg".  In case of "Length", files which have the same filename length  are  sorted  in  order  of
               their names.

               But this sorting is expediently displayed in fd, and it is reset by Directory move.

          Find file (Find)
               Find  the files matching the wildcard, and display only them.  The filename which starts with '.'
               doesn't match the wildcard which starts with '∗' nor '?'.  If you want to cancel the  File  find,
               you should move the current directory, or do FIND_FILE again and input a null line.

               When the current directory has the files which have the extension registered to associate with an
               archive browser, the string which starts with '/' is used  to  find  not  the  filename  but  the
               filename  in archive files, and only the archive files which contain matched files are displayed.
               This function is available in the archive browser.

               After Find file, you can not do WRITE_DIR.

          Display tree screen (Tree)
               Display the directory tree based on the current directory.  You can select the directory  in  the
               tree screen, to move the current directory.

          Edit file (Editor)
               Edit the file on the cursor position.  The editor is used referring EDITOR the internal variable,
               or referring EDITOR the environment variable when the internal variable is undefined.

          Unpack file (Unpack)
               Unpack the archive file on  the  cursor  position  into  the  specified  directory.   In  builtin
               configuration,  you  can  unpack only the tar file and its compressed file and the LHa compressed
               file.  You can describe configurations in the initial configuration  file  to  support  archivers
               except these.

          Change attribute (Attr)
               Change  the  file  access  mode,  the  timestamp  and  the  owner/group of the file on the cursor
               position.  When some files are marked, the target is not the file on the cursor position but  the
               marked  files.   In  case  of  the  marked  files, you must select the mode, the timestamp or the
               owner/group, before changing it all together.

               When you input the mode, cursor keys move a cursor to the position you want  to  change,  [Space]
               reverses  the  attribute  on the position.  You should notice that the attribute of the execution
               bit is not a binary toggle but a triple toggle, which includes setuid bit, setgid bit and  sticky
               bit  respectively.   If  the  target is the marked files, [m](Mask) will mask a bit on the cursor
               position with '*', to keep the value  of  the  original  file  attribute.   When  you  input  the
               timestamp, you move a cursor to the position you want to change, and input a numeric value.  When
               you input the owner/group, you move a cursor to the position for each name, and input a name or a
               ID value with [Space].  You can use the completion for a user name and a group name to input each
               name.  Finally, [Return] executes the change.  You can cancel with [Esc].  Be  careful  that  the
               limit check of date is not perfect.

               Moreover,  [a](Attr),  [d](Date),  [t](Time), [o](Owner) and [g](Group) move a cursor to the each
               beginning of input line.

               On the OS which has the attribute of file flags, you can change the file flags  as  well  as  the
               mode.   In  this case, [f](Flag) move a cursor to the beginning of input line of file flags.  But
               the value of flags which you can change is based on your permission.

          File system information (Info)
               Display the information of the specified file system.  When the  inputted  pathname  is  not  the
               special  file  which  indicates  a  file system, the information of the file system including the
               pathname is displayed.

          Move file (Move)
               Move the file on the cursor position to  the  specified  directory.   When  the  cursor  position
               indicates  a directory, the directory itself is moved.  When some files are marked, the target is
               not the file on the cursor position but the marked files.

               When the same named file exists in the destination, you can  select  the  operation  as  well  as
               COPY_FILE.   When  the destination belongs to the different file system, copy and delete are just
               executed continuously.

          Delete directory (rmDir)
               Delete the directory on the cursor position recursively.  When the directory in a symbolic  link,
               only the link is deleted and the linked directory has no effect.

          Make directory (mKdir)
               Make the sub directory on the current directory.  When the inputted sub directory string includes
               '/', which is the pathname delimiter, it goes on making directory recursively until the directory
               described by the string is finally created.

               When  you  input  the  pathname  which  starts with '/', the directory is made not on the current
               directory but on the absolute path described.

          Execute child process (sHell)
               Execute the inputted command string as the child process, by handling the  internal  shell.   You
               can  refer  the command history and use automatic LFN replacement, as well as EXECUTE_FILE.  When
               you push only [Return] without any input, the user shell which is described by SHELL the internal
               variable or the environment variable is invoked.  In this case, you should input "exit" to return
               to fd.  When the value of SHELL is fdsh, the internal shell is executed as the interactive shell.

               However, when there is the same command name as a builtin command  or  a  internal  command,  the
               builtin  command  or  the internal command are executed instead of the external command.  You can
               refer the clause of `Builtin Commands' for the details of the builtin command.

          Write directory (Write)
               Write the displayed directory.  The gap between files on the directory entry is filled.  When  it
               is executed after arranged by PUSH_FILE, POP_FILE and SORT_DIR, the result is written.

               When  the  displayed directory doesn't belong to the hierarchy under your home directory, you are
               confirmed for security whether if any  other  user  doesn't  use  the  directory.   Since  it  is
               insecure, you cannot write the NFS mounted directory and some special directories.

               If  you  execute  the internal command which arranges the file order, and then try to execute the
               internal command which will break that order, you will be confirmed  whether  if  you  write  the
               directory or not, just before the internal command is executed.  For this function, you can write
               the directory without intentionally  executing  this  Directory  write  command.   But  when  the
               displayed directory is not under your home directory, this confirmation is not done.

          Backup tape (Backup)
               Backup  the  file  on  the  cursor  position  into the specified storage device.  When the cursor
               position indicates a directory, all of its contents is backuped.  When some files are marked, the
               target is not the file on the cursor position but the marked files.

               Tar(1)  is used for backup.  When you specify the filename except special files indicates devices
               as input of the device name, the archive file is created with that filename.

          View file (View)
               View the file on the cursor position.  The pager is used referring PAGER the  internal  variable,
               or referring PAGER the environment variable when the internal variable is undefined.

          Pack file (Pack)
               Pack  the  file on the cursor position into the specified archive file.  When the cursor position
               indicates a directory, all of its contents is packed into the archive file.  When some files  are
               marked, the target is not the file on the cursor position but the marked files.

               According to the extension of the inputted archive file, the associated archiver is automatically
               selected.  In builtin configuration, you can pack only the tar file and its compressed  file  and
               the  LHa  compressed  file.  You can describe configurations in the initial configuration file to
               support archivers except these.

               When you use tar(1), you may sometimes be unable to pack a lot of files at once, because  of  the
               maximum  parameter  length which can be given at once.  In those case, you can create the archive
               file with BACKUP_TAPE.

          Operations with tree
               [L], [C], [M] and [U] can make you select the pathname from the directory  tree  instead  of  the
               string  input.  They execute the internal command equivalent to LOG_DIR, COPY_FILE, MOVE_FILE and
               UNPACK_FILE, respectively.

          Find file recursively
               Find the file matching the wildcard  recursively  under  the  current  directory,  and  move  the
               directory  where  the found file exists.  When the cursor position indicates a directory, it find
               the file under the directory on the cursor position instead of the current directory.

               You will be confirmed for each matching file whether if you move  or  not,  and  you  can  select
               [n](No) unless the target file is displayed.

          Change attributes recursively
               Change  attributes  the  directory  on  the  cursor  position  revursively.   As well as changing
               attributes of the marked files, you must select the  mode,  the  timestamp  or  the  owner/group,
               before changing it all together with each file under the directory.

               When  you  input  the  mode,  you  should notice that the attribute of the execution bit is not a
               triple toggle but a 5-states toggle, which includes 'X' and '!'.  'X' means setting the bit  only
               if  the  object is a directory or some execution bits are set.  '!'  also means unsetting the bit
               only if the object is a directory or some execution bits are set.  [m](Mask) will mask a  bit  on
               the cursor position with '*', to keep the value of the original file attribute.

          Invoke launcher
               [Return]  executes  the  operation according to the extension of the file on the cursor position,
               unless the cursor position indicates a directory.  In builtin configuration, the archive  browser
               is  registered  with  the  tar file and its compressed file and the LHa compressed file.  You can
               describe configurations in the initial configuration file to register launchers except these.

               When the file on the cursor position has the unregistered extension, it will behave  as  same  as
               VIEW_FILE.   In the archive browser, the registered launcher is available, so that you can invoke
               the archive browser recursively.

          Switch symbolic link mode
               In case of the symbolic link file, the file information displayed in  the  file  column  and  the
               status  line  shows not the status of its referential file but the status of the link itself.  It
               switches to show the status of the referential file.  (UNIX)

               In the mode of showing the status of the referential file, 'S'(Symbolic Link) is displayed on the
               left end of the function line.

          Switch file type symbol mode
               Switch  to display the symbol which means the file type after the filename in the file list, like
               as the display in -F option of ls(1).  It is toggle to switch if display the symbol or not.   The
               each symbol means the following.
                    /    directory
                    @    symbolic link
                        executable file
                    =    socket
                        FIFO

                    (MS-DOS version and the floppy drive)
                    /    directory
                        executable file
                    =    system file
                        label

               In  the  mode  of  displaying the file type symbol, 'T'(Type) is displayed on the left end of the
               function line.

          Switch dot file display mode
               Switch not to display the file whose filename starts with '.' in the file list.  It is toggle  to
               switch if display the dot file or not.

               In  the  mode  of  not  displaying  the dot file, 'H'(Hidden) is displayed on the left end of the
               function line.

          Switch file flag display mode
               Switch to display the file flag, which exists in some OS, instead of the file mode on each  file.
               It  is  toggle to switch if display the file flag or the file mode.  This is not available on any
               OS without the file flag.  The each symbol means the following respectively.  (UNIX)
                    A    Archived
                    N    Nodump
                    a    system Append-only
                    c    system unChangeable (immutable)
                    u    system Undeletable
                    a    user Append-only
                    c    user unChangeable (immutable)
                    u    user Undeletable

               In the mode of displaying the file flag, 'F'(Flags) is displayed on the left end of the  function
               line.

          Search file
               Search  the  current  directory  incrementally  for the filename, with moving a cursor.  When you
               execute this command, to switch to the search mode, a prompt appears in the function  line.   You
               can input the filename in this prompt, and a cursor will move to the filename matching the string
               which is already inputted at that present.  [Esc] switches to the normal mode.

          Split window
               Split the current window.  When you split a window in the normal non-split window mode,  it  will
               be  the  split  window mode in which the screen is split into 2 windows vertically.  In the split
               window mode, you can operate works individually on each window.  When you split a window  in  the
               split  window  mode, the current working window is split into 2 windows vertically.  You can make
               split windows up to 5.

          Change window
               Change effective window to the next in the split window mode.  When the  current  window  is  the
               last, the first window will be effective.  In the non-split window mode, it is ineffective.

          Widen window
               Widen the current window size in the split window mode, to narrow the next window size.  When the
               current window is the last, the first window size will be  narrowed.   In  the  non-split  window
               mode, it is ineffective.

          Narrow window
               Narrow the current window size in the split window mode, to widen the next window size.  When the
               current window is the last, the first window size will be widened.  In the non-split window mode,
               it is ineffective.

          Kill window
               Kill  the  current  window in the split window mode, to join it to the previous window.  When the
               current window is the first, it will be joined to the last  window.   If  the  result  number  of
               windows  is  one,  it  will  be  the  non-split window mode.  In the non-split window mode, it is
               ineffective.

          Invoke customizer
               Invoke the customizer which interactively changes the configurations to be set up by the internal
               variable  and  the  builtin  command.  While the configurations which is set up here is reflected
               immediately, you must intentionally save configurations in the customizer if you want to  reflect
               in the initial configuration file.

          Display help
               Display  the  list  of the current key bindings and their command descriptions.  When the list is
               not completely held in a screen, it prompts for every screen.

               In case of the circulated executable binary file, this screen shows the  E-mail  address  of  the
               circulation manager in the function line.  Please contact here when something will happen.

          Quit (Quit)
               Quit from fd.

   Commands
       In  EXECUTE_SH  and the initial configuration file, you can use the internal commands described above and
       the builtin commands described below, as well as the external commands.  With these commands, a  pipeline
       can consist of one or more commands separated by  or ⎪&.   connects the standard output of the previous
       command to the standard input of the next command.  ⎪& connects both the standard output and the standard
       error  output  of  the  previous command to the standard input of the next command.  The exit status of a
       pipeline is the exit status of the last command.  You can start a pipeline with !, then the  exit  status
       of  a  pipeline will be the logical NOT of the exit status of the last command.  Moreover, a command list
       can consist of one or more pipelines separated by ;, &, &⎪, &&, ⎪⎪.  This command list can end with ;,  &
       or &⎪.  These separators mean the following.
          ;    Execute commands sequentially.
          &    Execute commands synchronously, not waiting for the preceding pipeline to finish.  (UNIX)
          &⎪   Same as &, except to immediately disown the job.  (UNIX)
          &&   Execute the following pipeline only if the preceding pipeline returns a 0 exit status.
          ⎪⎪   Execute the following pipeline only if the preceding pipeline returns a non-0 exit status.
       In these command lists, a newline means as same as ;.

       The  input/output  of  each command in the command list can be redirected with the following redirectees.
       These redirectees can be placed on any position in the command string.
          n<file    Redirect the input indicated by the file descriptor n into the input from  file.   If  n  is
                    omitted, it is regarded as the standard input is specified.
          n>file    Redirect  the  output  indicated  by the file descriptor n into the output to file.  If n is
                    omitted, it is regarded as the standard output is specified.  If file doesn't  exist  it  is
                    created, otherwise it is truncated to 0 length before output.
          n>⎪file   Same  as  >, except to force to overwrite existent files even if -C option is set by set the
                    builtin command.
          n>>file   Redirect the output indicated by the file descriptor n into the output to  file.   If  n  is
                    omitted,  it  is  regarded as the standard output is specified.  If file doesn't exist it is
                    created, otherwise output is appended to it.
          n1<&n2    Redirect the input indicated by the file descriptor n1 into the input indicated by the  file
                    descriptor n2.  If n1 is omitted, it is regarded as the standard input is specified.
          n1>&n2    Redirect  the  output  indicated  by the file descriptor n1 into the output indicated by the
                    file descriptor n2.  If n1 is omitted, it is regarded as the standard output is specified.
          &>file    Redirect both the standard output and the standard error output into the output to file.  If
                    file doesn't exist it is created, otherwise it is truncated to 0 length before output.
          &>⎪file   Same  as &>, except to force to overwrite existent files even if -C option is set by set the
                    builtin command.
          &>>file   Redirect both the standard output and the standard error output into the output to file.  If
                    file doesn't exist it is created, otherwise output is appended to it.
          n<>file   Redirect  both  the  input/output  indicated  by the file descriptor n into the input/output
                    from/to file.  If n is omitted, it is regarded as the standard input is specified.
          n><file   Redirect both the input/output indicated by the file  descriptor  n  into  the  input/output
                    from/to file.  If n is omitted, it is regarded as the standard output is specified.
          n1<>&n2   Redirect  both  the  input/output  indicated by the file descriptor n1 into the input/output
                    indicated by the file descriptor n2.  If n1 is omitted, it is regarded as the standard input
                    is specified.
          n1><&n2   Redirect  both  the  input/output  indicated by the file descriptor n1 into the input/output
                    indicated by the file descriptor n2.  If n1 is omitted,  it  is  regarded  as  the  standard
                    output is specified.
          n<-
          n<&-      Close  the input indicated by the file descriptor n.  If n is omitted, it is regarded as the
                    standard input is specified.
          n>-
          n>&-      Close the output indicated by the file descriptor n.  If n is omitted, it is regarded as the
                    standard output is specified.
          n<>-
          n<>&-     Close  both  the  input/output  indicated  by the file descriptor n.  If n is omitted, it is
                    regarded as the standard input is specified.
          n><-
          n><&-     Close both the input/output indicated by the file descriptor n.  If  n  is  omitted,  it  is
                    regarded as the standard output is specified.
          n<<[-]word
                    Redirect  the  input indicated by the file descriptor n into the input which is read up to a
                    input line as same as word, or to an end of file.  If any part of word is quoted,  no  input
                    line  is  evaluated.  Otherwise, each input line is evaluated to expand variables or replace
                    strings.  When you specify -, all tabs on the beginning of input lines  is  stripped  to  be
                    send to a command.  If n is omitted, it is regarded as the standard input is specified.

       When  you specify the file with each redirect, you can describe the filename as `scheme://host:port' form
       to open the following TCP sockets, according to the string of scheme.  The authentication of your OS will
       restrict specifying the accepting port.  (UNIX)
          connect://host:port
                    This  socket  is  connected  to  the  remote host specified by host with the TCP port number
                    specified by port.
          accept://[host][:port]
                    This socket is accepted to the local host  specified  by  host  with  the  TCP  port  number
                    specified  by  port.  If host is omitted, this socket will be accepted to any host.  If port
                    is omitted, the port within the range determined by the OS is used.
          bind://[host][:port]
                    This socket is bound to the local host specified by host with the TCP port number  specified
                    by  port,  preparing  accept  the  builtin command.  If host is omitted, this socket will be
                    accepted to any host.  If port is omitted, the port within the range determined by the OS is
                    used.

       On  each command line, the string from '#' to the end of line and a null line are ignored.  When the line
       ends with '\', it is referred as continuing into the next line, so that you can split a  long  line  with
       this.

   Builtin Commands
       Fd  has the following builtin commands.  These builtin commands can be used in EXECUTE_SH and the initial
       configuration file.

       if list then [elif list then list] ... [else list] fi
                     The list of if clause and elif clauses are executed in order, and if each exit status is  a
                     0,  then  the list of then clause associated with it is executed and the elif clauses after
                     it are ignored.  If no list of if clause nor elif clauses return a  0,  the  list  of  else
                     clause  is  executed.   If  no  list  of  then clauses nor else clause is executed, then if
                     returns a 0 exit status.

       while list do list done
                     The list of while clause is executed repeatedly, and while its exit status is 0,  the  list
                     of  do  clause  is  executed  repeatedly.  If the list of do clause is never executed, then
                     while returns a 0 exit status.

       until list do list done
                     The list of until clause is executed repeatedly, and while its exit status is  NOT  0,  the
                     list of do clause is executed repeatedly.  If the list of do clause is never executed, then
                     until returns a 0 exit status.

       for NAME [in value ...] do list done
                     NAME the internal variable is substituted for values of value  one  by  one,  and  list  is
                     executed  according  to  the  each  value.   If  in  value is omitted, then each positional
                     parameter is substituted one by one.

       case word in [pattern [ pattern] ... ) list ;;] ... esac
                     The string word is compared with the each pattern, list associated with the  pattern  which
                     first matches it is executed.

       (list)        Execute list in a sub shell.

       { list; }     Execute list in the current shell.

       NAME=[value] [com ...]
                     Define  a  internal  variable  which  is  available  only  in fd.  It substitutes the value
                     (string) value for NAME the internal variable.  When you describe the command com after the
                     definition  of  a variable, com is executed on the state where this variable is regarded as
                     the environment variable.  In this case, the definition  of  NAME  is  not  remain  as  the
                     environment variable nor the internal variable.

                     If  value is omitted, the value of NAME the internal variable is defined as a null.  If you
                     want to delete the definition of a internal variable, use unset the builtin command.

       name() { list; }
                     Define a function whose body is list, as the name of name.  The  defined  function  can  be
                     used in the command line of EXECUTE_SH and each command macro described below.  You can use
                     the positional parameter $n in each description of list, which indicates the argument  when
                     the function is invoked.  $0 is name itself, and $1-$9 indicates each argument.

                     Although you cannot omit { } and list, you can omit { } before/after list which consists of
                     a single command.  If you want to delete the  definition  of  a  function,  use  unset  the
                     builtin command.

       !num          Execute  the  command  which  has  the history number specified with the numeric value num.
                     When num is negative value, it executes the command which has the  history  number  as  the
                     current history number minus num.

       !!            Execute the previous command.  This is synonym for !-1.

       !str          Execute the command history which starts with the string str.

       : [arg ...]   No effect.  But it evaluates arg and performs redirection.

       . file
       source file   Read  and  evaluate  commands  from  file.   File  must  exists on the directory which PATH
                     includes, or be described with pathname.  The each line format is based on  the  format  of
                     EXECUTE_SH.  You can describe this in the file as nesting.

       accept [fd]   Accept  the  connection  with the file descriptor indicated by fd, and the connected socket
                     will be assign to fd of the same file descriptor.  At the same time,  the  accepted  socket
                     will  be  closed.  When fd is not the redirection as the form of bind://, this command will
                     be failed.  In comparison with the redirection as the form  of  accept://,  the  shell  can
                     receive  controls  before establishing connection to negotiate the TCP port number with the
                     remote host in advance.  (UNIX)

                     If fd is omitted, the connection will be accepted with the standard input.

       addcr [-1] [file]
                     Output the string read from the file specified by file, line by line.  The newline of  each
                     line is unified into CR-NL (\r\n).  It is useful to pipe the output to some socket.

                     If file is omitted, it is regarded as the standard input is specified.  If -1 is specified,
                     it will output just 1 line and exit.

       alias [name[=com]]
                     Define a alias whose body is com, as the name of name.  The defined alias can  be  used  in
                     the  command  line  of  EXECUTE_SH  and  each  command  macro  described  below.  The alias
                     substitution is performed recursively.

                     If com is omitted, the alias of name is displayed.  If both com and name are  omitted,  all
                     the current alias definition list is displayed.

       arch ext [pack unpack]
                     Register the archiver command associated with the archive file which has ext the extension.
                     The pack command is specified as pack, and the unpack command is specified as unpack, using
                     the  macro  representation  quoted  with ".  When ext starts with /, uppercase/lowercase is
                     ignored in the comparison of any extension.

                     If both pack and unpack  are  omitted,  the  archiver  command  registration  for  ext  the
                     extension is deleted.

       bg [job]      Continue  the  execution  of  the  job specified with job in the background.  The following
                     format is available to specify a job.  (UNIX)
                           %
                           %+   the current job
                           %-   the previous job
                           %n   the job with job number n
                           %str the job whose command line starts with str
                     But, you must describe these %  in  the  command  line  of  EXECUTE_SH  as  the  duplicated
                     expression, such as %%, for the reason of the parameter macro function described below.

                     If job is omitted, the current job is continued in the background.

       bind c [com1 [com2] [:comment]]
                     Bind  the  command  com1 to the key c.  When you want to specify a control character for c,
                     you can prefix ^ into 2 characters, such as ^A.  When you want to specify a character  with
                     the  META  key (or the ALT key on MS-DOS version), you can prefix @ into 2 characters, such
                     as @a.  When you want to specify a function key  and  a  special  key,  you  can  use  each
                     identifier  described in keymap command after, such as F10.  Or you can describe the escape
                     sequence, such as \n and \e, and the octal expression, such as \ooo.

                     In case of binding the internal command of fd, you can the command  identifier  as  it  is.
                     When  you  want to define the internal command with some arguments or define the command in
                     the macro representation, you should describe the string quoted with ".   If  com2  is  not
                     omitted,  com2  is executed when the cursor position indicates a directory.  When the key c
                     is the function key of F1-F20, if you describe comment prefixed with : trailing the command
                     description,  you  can  change  the  display  of  associated part in the function line into
                     comment.

                     However, note that, with the key binding for the control key, the configuration in the edit
                     mode described below is prior to the key binding.

                     If  both  com1  and  com2  are  omitted,  the  registration of key binding for the key c is
                     deleted.

       break [n]     Exit from the loop, it is used in the for statement and so  on.   If  n  is  specified,  it
                     breaks n levels from the loop.

       browse [-@ file]
       browse com [-ftbie arg] [-p com2] [-dn {noprep,loop}] ...
                     Execute  com  the  command,  and  invoke  the archive browser who receives its output.  You
                     should the macro representation quoted with " as com.  -f, -t, -b, -i and  -e  options  are
                     the  same  as  the  one  for  launch  the  builtin command.  In case that multiple coms are
                     specified, the next com the command is executed one after  another  when  you  select  each
                     files  in  the  archive  browser, and the formats and patterns described after each com the
                     command are adopted.  In order to return to the previous  level  of  archive  browser,  you
                     should  select  the file named as ..  or push the key [Bs].  Or you can use QUIT_SYSTEM the
                     command to escape from all of the archive browsers invoked by browse.  You must describe -f
                     option,  except  for  the  last  com  the command.  When the last com has no -f option, the
                     command has been just executed instead of invoking an archive browser, and then will return
                     to the previous archive browser when it is done.

                     When you specify -p option, the execution of com2 the command precedes the execution of the
                     next com the command when you select a file.  While com is executed in the sub shell for  a
                     pipeline, com2 is executed in the current shell to inherit the values of internal variables
                     set in this command after com2 has been done.  The filenames which is selected toward  this
                     level  of  archive  browser  are  held  in positional parameters sequentially, and the last
                     selected filename is held in $1.  These parameters will be newly set whenever you select  a
                     file,  so that they are reset in sequential order when you select the next file even if you
                     replace them with set or shift the builtin command.  -d and -n options specify a control if
                     the  selected  file  is  a  directory  or  not respectively.  When you specify noprep, com2
                     specified by -p option is not executed.  When you specify loop, you don't step the next com
                     the command but the same com the command again.

                     And  when  you think troublesome to describe too many arguments for browse, you can specify
                     file the file in which some arguments are described with -@ option.  You  can  describe  -@
                     option in any place of arguments, the arguments described in file are inserted in the place
                     where -@ is described.  If you specify - as file, arguments  are  read  from  the  standard
                     input  instead  of the file.  You should describe arguments in file with spaces or newlines
                     as separator.  The null line and the line  started  with  #  will  be  ignored.   When  you
                     describe -@ option in file, the argument file is referred recursively.

       builtin arg ...
                     Execute  arg  as  a  simple  builtin command.  When the same named function is defined, the
                     function will not be executed.

       cd [-LP] [dir]
       chdir [-LP] [dir]
                     Change the current directory in fd to dir.  If dir is omitted, it moves  to  the  directory
                     indicated  by  HOME  the  internal variable.  If you specify the pathname as ".", "?", "-",
                     "@", it behaves like as LOG_DIR.

                     If -L is specified, the logical pathname following  symbolic  links  is  used.   If  -P  is
                     specified,  the  physical  pathname  following  no  symbolic links is used.  Otherwise, the
                     physical option for set the builtin command is effective.

       checkid [file ...]
                     Calculate the unique ID of the  specified  file  and  display  it,  according  to  the  MD5
                     algorithm  in RFC1321.  When you specify multiple files, the IDs of all specified files are
                     calculated and displayed.  When you specify  nothing,  the  ID  of  running  fd  itself  is
                     displayed.

                     Since this algorithm is guaranteed to be secure, it is available to confirm the identity of
                     files.

       cls           Clear the screen.

       command [-p | -v | -V] arg ...
                     Execute arg as a simple command.  When the same named function  is  defined,  the  function
                     will  not be executed.  If -p is specified, the default value of PATH is used to search the
                     path.  If -v is specified, the absolute path for arg is displayed instead of executing arg.
                     In  this  case,  arg  the  builtin command will cause simply its name.  If -V is specified,
                     verbose description for arg is displayed as same as type.

       continue n    Resume the next iteration in the loop, it is used in the for statement and so on.  If n  is
                     specified, it resumes the next iteration in the loop n - 1 levels out of the loop.

       copy [-ABVY-Y] src [-AB] [+ src2 [-AB] [+ ...]] [dest [-AB]]
                     Copy the file indicated by src into the file or the directory indicated by dest.  When dest
                     indicates a directory, the filename in the destination is src.  If dest is omitted,  it  is
                     copied  into the current directory.  You can specify multiple source files by describing to
                     separate them with +, or by using the wildcard.  When you separate them with +, those files
                     are concatenated and copied.  When you use the wildcard, they are copied one by one in case
                     that the destination is a directory, and they are concatenated in case that the destination
                     is a file.

                     When  you  specify  -A,  it  is treated as the ASCII text file.  When you specify -B, it is
                     treated as the binary file.  When you specify -V, it is verified to copy.  When you specify
                     -Y,  it doesn't prompts for confirming to overwrite into the destination.  When you specify
                     --Y, it prompts for confirmation before overwriting into the destination.

                     (MS-DOS version requires to use / instead of - as an option prefix for  compatibility  with
                     COMMAND.COM.)

       del [-P] file
       erase [-P] file
                     Delete the files indicated by file.  You can specify multiple files by using wildcard.

                     When you specify -P, it prompts for confirmation before deleting files.

                     (MS-DOS  version  requires to use / instead of - as an option prefix for compatibility with
                     COMMAND.COM.)

       dir [-[-]PWSBLV4] [-A[DRHSA-]] [-O[NSEDGA-]] [dir]
                     List files and sub directories in the directory indicated by dir.  If dir is  omitted,  the
                     information in the current directory is listed.

                     When you specify -P, it prompts for every screen.  When you specify -W, it is listed in the
                     wide view.  When you specify -A, it lists only the files which have the attribute indicated
                     by the trailing character.
                           D  directory        R  read only file
                           H  hidden file      S  system file
                           A  ready to archive -  except it
                     When you specify -O, it sorts with the sorted type indicated by the trailing character.
                           N  by name          S  by size
                           E  by extension     D  by date & time
                           G  directory first  A  by last access time
                           -  reverse order
                     When  you  specify  -S,  it  lists  files  in all sub directories.  When you specify -B, it
                     displays only names of files and directories.  When you  specify  -L,  it  uses  lowercase.
                     When  you  specify  -V, it lists the verbose information.  When you specify -4, it displays
                     year with 4 digits.  And you can prefix - to any option letter to override the option.

                     (MS-DOS version requires to use / instead of - as an option prefix for  compatibility  with
                     COMMAND.COM.)

       dirs          Display  the  list  of the current directory stack.  Pushd and popd the builtin command can
                     load/unload directories onto the directory stack.

       disown [job]  Remove the job specified with job from the shell control.  The job to be disowned cannot be
                     controlled  by  jobs,  fg and bg.  If invoked as a login shell, any jobs not to be disowned
                     will be forced to exit when the shell finish.  (UNIX)

                     If job is omitted, the current job is removed from the shell control.

       dtype file    Display the contents of the file indicated by file.

       echo [-nN] [arg ...]
                     Echo arg to the standard output.  When you don't specify -n, newline  is  added  to  output
                     trailing  after arg.  When you specify -N, the outputted newline becomes CR-NL (\r\n).  See
                     echo(1) for details.

       enable [-n] [arg ...]
                     Enable arg as a builtin command.  When you specify -n, it is disabled.  If arg is  omitted,
                     all of the enabled or disabled builtin commands is listed.

       eval [arg ...]
                     Evaluate arg and execute the results.

       evalmacro [arg ...]
                     Evaluate  parameter  macros  included  in  arg and execute the results.  Since eval doesn't
                     evaluate any parameter macro, you should choose  them  according  to  uses.   When  in  the
                     function,  you  cannot  use  any  parameter  macro,  then  you need this command to extract
                     parameter macros.

       exec [com [arg ...]]
                     Execute com in place of the execution of fd.  You can specify arg as arguments of com.

       exit [n]      Exit from fd.  When you specify n, it exits with the exit status n.

       export [NAME[=[value]] ...]
                     Mark NAME the internal variable to be inherited  to  child  processes  as  the  environment
                     variable.   Since  then, the definition of NAME can be referred in any child process.  When
                     you export the undefined internal variable, it  doesn't  become  the  environment  variable
                     until  the  internal  variable  is  defined.  When you want to define the value at the same
                     time, you should specify value.

                     If only = is specified and value is omitted, the value of NAME the environment variable  is
                     defined  as a null.  If no argument is specified, all of the exported environment variables
                     is listed.  When you want to delete the definition of the environment variable, you can use
                     unset the builtin command.

       false         Only return with a 1 exit status.

       fc [-l | -s [old=new ...]] [-nr ] [-e editor] [first [last]]
                     List  or  edit  command  histories.   First and last select the range of command histories.
                     This specification can be described as a numeric value or a string.  A positive value means
                     the  command  history  number, and a negative value means the command history which has the
                     history number as the current history number minus the value.  A string  mean  the  command
                     history  which  starts  with  the string.  If -n is specified, command histories are listed
                     without their history numbers.  If -r is specified, command histories are listed in reverse
                     order.   If  -e is specified, the editor named by editor is used to edit command histories,
                     otherwise the editor specified by FCEDIT or EDITOR the internal variable is used.

                     When -l is specified, selected command histories are listed to  the  standard  output.   In
                     this  case,  omitting  last  means to specify the current history number, and also omitting
                     first means to specify -16.

                     When -s is specified, the command history selected by first is  executed  immediately.   In
                     this  case,  omitting  first  means  to  specify  the  current  history  number.  The first
                     occurrence of the string old in the command history will be  replaced  by  the  string  new
                     before execution.

                     When  neither  -l  nor -s is not specified, selected command histories are edited, and then
                     each edited commands are executed one by one with display in the standard output.  In  this
                     case,  omitting  last  means to specify first, and also omitting first means to specify the
                     current history number for both.

       fd [directory [directory2]]
                     Invoke fd from the internal shell.  If you specify  directory,  the  current  directory  is
                     moved  to  the  directory  initially.   If you specify directory2, the split window mode is
                     invoked, and the current directory of the supplemental window is moved  to  the  directory.
                     You  can  return  to  the  internal  shell by QUIT_SYSTEM.  It is effective only when it is
                     invoked as fdsh.

       fg [job]      Continue the execution of the job specified with job  in  the  foreground.   The  following
                     format is available to specify a job.  (UNIX)
                           %
                           %+   the current job
                           %-   the previous job
                           %n   the job with job number n
                           %str the job whose command line starts with str
                     But,  you  must  describe  these  %  in  the  command  line of EXECUTE_SH as the duplicated
                     expression, such as %%, for the reason of the parameter macro function described below.

                     If job is omitted, the current job is continued in the foreground.

       getfreq [file]
                     Output the contents of the translation frequency file, specified by file, to  the  standard
                     output  for  the  users  Kana-Kanji  translation  learning.  The output format provides one
                     record per line, which consists of "Yomi-Gana", "word" and "frequency"  separated  by  tab.
                     You can use this output as the argument of setfreq to import the frequency information.  If
                     file is omitted, it is regarded as the translation frequency file specified by FREQFILE the
                     internal variable.  (UNIX)

       getkey [num]  Get  the key code sequence for the pushed key.  It prompts after executed, and displays the
                     key code sequence for the key which you push to specify.  It continues until you  push  any
                     key  num  times.  When num is more than 1 time, you can stop it with pushing [Space].  When
                     num is 0 time, it continues forever until [Space] is pushed.  The displayed sequence can be
                     used as the key code sequence for keymap command.  (UNIX)

                     If num is omitted, it is regarded as 1 time is specified.

       getopts optstr NAME [arg ...]
                     Used  to  parse  the  optional  parameters from a sequence of arg.  The valid characters as
                     option is described in optstr.  An option character which needs an  argument  is  described
                     with  following : in optstr.  Each time getopts is invoked, the new option character parsed
                     from arg is substituted for NAME the internal variable.  When the option has  an  argument,
                     the  argument  is  substituted for OPTARG the internal variable.  And the index of the next
                     parameter is substituted for OPTIND the internal variable every time.  The value of  OPTIND
                     is  initialized  to  1  whenever the shell is invoked, another parsing of option parameters
                     needs initializing OPTIND to 1 manually.  If arg  is  omitted,  positional  parameters  are
                     parsed to the optional parameters.

                     When  the  end  of  option  is encountered, getopts will exit with the value of 1.  In this
                     case, ?  is substituted for NAME.  When an option character which is not included in optstr
                     is  found,  an  error  message is written to the standard error, then ?  is substituted for
                     NAME and OPTARG is unset.  But, if OPTARG is started with :, no error message  is  written,
                     and  the  found  option  character  is substituted for OPTARG instead.  When no argument is
                     found with the option character which needs an argument, an error message is written to the
                     standard  error,  then  ?   is substituted for NAME and OPTARG is unset.  But, if OPTARG is
                     started with :, no error message is written, then the found option character is substituted
                     for OPTARG instead, and : is substituted for NAME.

       hash [-rcom ...]
                     Search  the  absolute  path for com referring to PATH, which indicates the search path when
                     the external command is executed, and register the result in the hash table.

                     When you specify -r instead of com, all the memorized hash table is discarded.  If  com  is
                     omitted,  the hash table information is listed.  hits, cost, command indicate the number of
                     times the command has been executed, the measure of the work required to search it  in  the
                     search  path,  and  the  absolute  path for the command, respectively.  When the command is
                     searched in a relative directory,  it  is  necessary  to  re-search  whenever  the  current
                     directory  is moved, because it is not registered as the absolute path.  In such command, 
                     trailing hits is displayed.

       history [n]   List the last n command histories with the history number.

                     If n is omitted, all of the memorized command histories is listed.

       jobs          List the running jobs.  (UNIX)

       kconv [-i in] [-o out] [infile [outfile]]
                     Read from infile and convert its Kanji code from in to out, and output to outfile.   In  in
                     and  out,  you  can  specify  the  string  which  used  in FNAMEKCODE the internal variable
                     described below.  If each of them is omitted,  it  is  regarded  as  that  the  Kanji  code
                     specified  in  compile  is  specified.   If  outfile is omitted, it outputs to the standard
                     output.  If also infile is omitted, it reads from the standard input.  (UNIX)

       keymap [c [str]]
                     Map the sequence str as key code of the special key c.  You  can  use  only  the  following
                     identifiers as c.  (UNIX)
                           UP       Up         DOWN     Down
                           RIGHT    Right      LEFT     Left
                           BEG      Begin      EOL      Eol
                           HOME     Home       END      End
                           INS      Insert     DEL      Delete
                           INSLIN   InsLine    DELLIN   DelLine
                           PPAGE    PageUp     NPAGE    PageDown
                           ENTER    Enter      BS       Bs
                           CLR      Clear      HELP     Help
                           PLUS     + (tenkey) MINUS    - (tenkey)
                           ASTER    ∗ (tenkey) SLASH    / (tenkey)
                           COMMA    , (tenkey) DOT      . (tenkey)
                           EQUAL    = (tenkey) RET      Return (tenkey)
                           TK0..TK9 0-9 (tenkey)
                           F1...F20 function key

                     You  can  use  the escape sequence in the key code sequence, such as \n =0x0a and \e =0x1b.
                     You can also use the octal  expression,  such  as  \ooo.   You  can  describe  the  control
                     character prefixing ^, such as ^A.  ^ itself can be described as \^.

                     If  str  is  omitted,  the  key  code  sequence  for c is displayed.  If both str and c are
                     omitted, all of the mappings for special keys is listed.  When you specify str as  "",  the
                     key code mapping for c is canceled.

       kill [-l-signal] [pidjob ...]
                     Send  the  signal indicated by signal to the process indicated by the process number pid or
                     to the job indicated by job.  Signal is described as a numeric value or a signal name.

                     If signal is omitted, SIGTERM is send.  When you specify -l,  it  lists  the  signal  names
                     which can be used as signal instead of sending a signal.

       launch ext [com [format [top bottom]]]
       launch ext com [-f format] [-t top] [-b bottom] [-ie patt]
                     Register  the  behavior  for  ext  the  extension  as  the  launcher.  You should the macro
                     representation quoted with " as com.  When you register  an  archive  browser,  you  should
                     describe the command to list the archived files as com, and describe the format of the list
                     as format.  When you describe top and bottom, you can specify unnecessary lines in the list
                     as   the   number   of   lines   from  the  top/bottom  line.   When  ext  starts  with  /,
                     uppercase/lowercase is ignored in the comparison of any extension.

                     If com is omitted, the launcher registration for ext is canceled.

                     When you register an archive browser, you can use the latter form to describe more detailed
                     control.   You  can specify multiple formats as candidates with multiple -f options.  These
                     candidates for format are compared in order of appearance, if no one is matched  completely
                     then  the  nearest one is adopted.  -i and -e options specify patt the pattern for the line
                     to be ignored and for the line to be treated as error respectively.  When the list includes
                     unnecessary  lines  you  can specify also top and bottom, but you must specify lines except
                     top/bottom lines with -i option.  In case that a failure to unpack  files  in  the  archive
                     file causes outputting some strings, you can specify the strings with -e option.  -i and -e
                     options can specify multiple patterns, and they are effective if one of  them  is  matched.
                     And you can use a wildcard in the description for each patt the pattern.

       md dir        Create the directory dir.

       mkdir dir     Same as md.  (DOS)

       newgrp [arg ...]
                     Execute  newgrp(1)  in  place  of the execution of fd.  You can specify arg as arguments of
                     newgrp(1).  See newgrp(1) for details.  (UNIX)

       login [arg ...]
                     Execute login(1) in place of the execution of fd.  You can  specify  arg  as  arguments  of
                     login(1).  See login(1) for details.  (UNIX)

       logout [n]    Exit from a login shell.  When you specify n, it exits with the exit status n.

       popd          Unload  the  top directory onto the directory stack, and change the current directory in fd
                     to the directory.  This command is failed when the directory stack is empty.

       printarch [ext]
                     Print the archiver commands registered for the archive file which has ext the extension.

                     If ext is omitted, all of the registered archiver commands is listed.

       printbind [c] Print the command binded to the key c.  You can specify the key as well as bind.

                     If c is omitted, all of the registered key bindings is listed, which is defined not as  the
                     internal  command  but  as the command macro.  The key bindings of internal commands can be
                     referred in HELP_MESSAGE.

       printdrv [c]  Print the device file and  the  number  of  heads/sectors/cylinders  of  the  floppy  drive
                     registered for the drive name c.  (UNIX)

                     If c is omitted, all of the registered floppy drives is listed.

       printlaunch [ext]
                     Print  the  command  macro  registered  as  the launcher for ext the extension.  When it is
                     registered as the archive browser, the format for listing is also printed.

                     If ext is omitted, all of the registered launchers is listed.

       printroman [roman]
                     Print the Roman-Kana translation table for the Kana-Kanji IME mode.  It means printing  the
                     Japanese string bound for roman the Roman string.  (UNIX)

                     If roman is omitted, all the registered Roman-Kana translation table is listed.

       pushd [dir]   Load the current directory onto the directory stack, and change the current directory in fd
                     to dir.  If you specify the pathname as ".", "?", "-", "@", it  behaves  like  as  LOG_DIR.
                     The physical option for set the builtin command is effective for symbolic links.

                     If  dir  is  omitted,  change  the  current directory to the top directory of the directory
                     stack, and replace it with the current directory.  In this case,  this  command  is  failed
                     when the directory stack is empty.

       pwd [-LP]     Display  the  current  directory with the absolute representation.  If -L is specified, the
                     logical pathname following symbolic links is displayed.  If -P is specified,  the  physical
                     pathname  following no symbolic links is displayed.  Otherwise, the physical option for set
                     the builtin command is effective.

       read [-N] [NAME ...]
                     Read one line from the standard input and substitute that  string  for  NAME  the  internal
                     variable.   The inputted string is separated with IFS into some words.  When multiple NAMEs
                     are specified, words are substituted one by one from the first of line, and  all  the  rest
                     are  substituted  for  the  last NAME.  When the number of words in inputted string is less
                     than the number of NAME, a null is substituted for the rest of NAME.

                     If -N is specified, the newline of the line to be read is regarded as CR-NL (\r\n).

       readline [prompt]
                     Read one line from the terminal input and output that string to the standard output.   When
                     prompt  is specified, the string is displayed on the beginning of input line.  This command
                     differs from read the builtin command in the terminal input  and  the  line  editing.   You
                     cannot  use  the  history  as  one  of  the  line editing, but can use the completion for a
                     pathname.

       readonly [NAME[=[value]] ...]
                     Mark NAME the internal variable to be readonly.  Since then, you cannot change the value of
                     NAME.  When you want to define the value at the same time, you should specify value.

                     If  only  =  is  specified and value is omitted, the value of NAME the internal variable is
                     defined as a null.  If no argument is specified, all of the readonly internal variables  is
                     listed.

       rd dir        Delete the directory dir.  You cannot delete the non-empty directory.

       rmdir dir     Same as rd.  (DOS)

       ren old new
       rename old new
                     Rename  the  filename  or the directory name old into new.  You can specify the wildcard in
                     old and new to rename the multiple filenames all together.

       rem [arg ...] No effect, same as :.

       return [n]    Return from a function with the return value specified by n.  If n is omitted,  the  return
                     value  is  the  exit  status  of  the  last  executed  command.  It cannot be used out of a
                     function.

       savetty [-n]  Save the current terminal settings.  The saved settings will be restored when EXECUTE_SH is
                     executed  later.   In  case  that  you change terminal settings with stty(1) and so on, you
                     should save the settings with this command not to reset settings with the next execution of
                     EXECUTE_SH.   If  you  change  terminal  settings  and execute this command not in the same
                     command line, you should notice that this command will save the reset settings.  If  -n  is
                     specified, the saved settings will be cleared.  (UNIX)

       set [--abCefhkmntuvx] [-o option] [arg ...]
                     List  internal variables and functions, without any argument.  When you specify arg, arg is
                     substituted for the positional parameter $1, $2, ..., $n in order.  When  you  specify  any
                     option, each option means the following.  When you use + instead of -, the option parameter
                     turns off each option.
                     -a   Export any internal variable automatically when it is defined.
                     -b   When a background job has  been  terminated,  its  status  report  will  be  displayed
                          immediately.  there is no effect when the job control is not enabled.
                     -C   Prevent overwriting to any existent files in redirection.
                     -e   Exit immediately when any command returns the exit status except 0.
                     -f   Disable the wildcard expansion.
                     -h   Register  any command to the hash table just before it is executed.  The commands used
                          in a function are read when it is defined, and are registered to the hash table.   The
                          command hash itself is always valid, if -h option is set or not.
                     -k   Treat all NAME=[value] formed arguments as the variable definition, while they are not
                          placed on the beginning of command line string.
                     -m   Enable the job control.  This option is valid by default.  (UNIX)
                     -n   Read command inputs but don't execute them.
                     -o option
                          The following identifiers are valid in option.
                          allexport
                               Same as -a.
                          autosavetty
                               Same as -S.
                          emacs
                               Same as EDITMODE=emacs.
                          errexit
                               Same as -e.
                          hashahead
                               Same as -h.
                          ignoreeof
                               Any EOF will not terminate the interactive shell.
                          keyword
                               Same as -k.
                          monitor
                               Same as -m.
                          noclobber
                               Same as -C.
                          noexec
                               Same as -n.
                          noglob
                               Same as -f.
                          notify
                               Same as -b.
                          nounset
                               Same as -u.
                          onecmd
                               Same as -t.
                          physical
                               Same as -P.
                          ptyshell
                               Same as -T.
                          verbose
                               Same as -v.
                          vi   Same as EDITMODE=vi.
                          xtrace
                               Same as -x.
                          If option is omitted, the values of the current options are displayed.
                     -P   Cd and pwd the builtin command use the physical directory  structure  instead  of  the
                          logical directory structure following symbolic links.
                     -S   Execute  savetty  the  builtin  command  automatically  whenever  any  command line is
                          processed.  The terminal settings will be saved  absolutely  unless  you  operate  the
                          terminal  settings  intentionally,  so  that  you  should manually adjust the terminal
                          settings saved accidentally.  (UNIX)
                     -T   Invoke fdsh as the pseudo terminal.  You cannot invoke any more  pseudo  terminals  in
                          this  mode.   It  is  effective only if you specify it as the startup option or in the
                          initial configuration file.  It is effective only if you specify  it  as  the  startup
                          option,  when  the shell is executed as the non-interactive shell.  It is just ignored
                          when invoked as fd.  (UNIX)
                     -t   Exit immediately after executing the current command input.
                     -u   Treat the reference of undefined variables as an error.
                     -v   Display the command inputs whenever they are read.
                     -x   Display the command strings whenever they are executed.
                     --   Indicate the end of options.  No flag is changed.

       setdrv c device hd sc cl
                     Specify the device file indicated by device for the MS-DOS floppy drive named as c.  At the
                     same time, hd, sc, cl are specified as the number of heads(sides)/sectors/cylinders(tracks)
                     in the format which is treated in the driver of device.  In special case, when you want  to
                     treat  the  640KB2DD(hd=2/sc=8/cl=80)  floppy disk with the driver which can treat only the
                     820KB2DD(hd=2/sc=9/cl=80) floppy disk, you should specify the value adding 100 (108) as the
                     value of sc.  (UNIX)

                     On  the  PC-UNIX  environment  which  is  worked  on PC, specifying the string HDD or HDD98
                     instead of hd, sc, cl, can register the MS-DOS partition on the hard  disk  for  the  PC/AT
                     compatible machine or PC-9800 series.  In this case, You should describe the device file as
                     the device name prepared per the physical drive unit rather than the device  name  prepared
                     per  the  partition  (slice).   The  MS-DOS  partitions  included  in  the  drive  unit are
                     automatically expanded to the drive name after the drive name c.  When no MS-DOS  partition
                     is  included  in  the  specified drive unit, this command is ignored.  You can confirm what
                     drive name is valid by printdrv command.  But any hard disk is registered as readonly,  for
                     security.

       setfreq [file]
                     Append  the  frequency  information  inputted  from  the  standard input to the translation
                     frequency file, specified by file, for the  users  Kana-Kanji  translation  learning.   The
                     input format is based on the output format of getfreq.  If you want to replace, rather than
                     to append, you must remove the translation frequency file in advance.  If file is  omitted,
                     it  is  regarded  as  the  translation  frequency  file  specified by FREQFILE the internal
                     variable.  (UNIX)

       setroman [-c] [-r] [-f file] [roman [kanji]]
                     Setup the Roman-Kana translation table for the Kana-Kanji IME mode.  It means binding kanji
                     the  Japanese  string  to roman the Roman string.  The part over 4 characters of roman, the
                     string which consists of 1 byte  characters  only,  will  be  ignored.   The  part  over  2
                     characters  of  kanji,  the  string  which  consists  of  multibyte  characters  or  1 byte
                     characters, will be ignored.  In this case, a multibyte character is counted as 1 character
                     as well as a 1 byte character.  (UNIX)

                     If  kanji  is omitted, the registered binding of the Roman-Kana translation table for roman
                     the Roman string will be deleted.  When you specify -c, the  whole  Roman-Kana  translation
                     table  will  be cleared to be empty.  When you specify -r, all the registered bindings will
                     be reset to restore the Roman-Kana translation  table.   When  you  specify  -f,  the  file
                     specified  by  file  will be read as bindings of the Roman-Kana translation table.  In this
                     case, a pair of roman and kanji, which is separated by spaces, must be  described  in  each
                     line of file.  You can also use the file which contains the output of printroman.

       shift [n]     Rename  the  positional  parameters  from  $n+1  into  ones from $1 in order.  The original
                     positional parameters from $1 to $n are discarded.  If n is omitted, it is regard as  1  is
                     specified.

       socketinfo [-apAP] [fd]
                     If  the file descriptor specified by fd is a socket, the IP address and the TCP port number
                     of the connected remote host, and the IP address and the TCP port number of  the  connected
                     local host, are outputted to the standard output.  If fd is not a socket, this command will
                     be failed.  (UNIX)

                     If fd is omitted, it is regarded as the standard input is specified.  If -a  is  specified,
                     only the IP address of the remote host will be outputted.  If -p is specified, only the TCP
                     port number of the remote host will be outputted.  If -A is specified, only the IP  address
                     of  the  local host will be outputted.  If -P is specified, only the TCP port number of the
                     local host will be outputted.

       test [expr]
       [ expr ]      Evaluate the conditional expression expr.  See test(1) for details.

       times         Display the accumulated user and system time for  the  processes  which  has  so  far  been
                     executed.

       trap [com] [n ...]
                     Read  and  execute  the  command com when fd receives the signal n.  If com is omitted, the
                     trap for the signal is reset.  When you specify com as a null, the  signal  ignored.   When
                     you  specify  n  as 0, the command com is executed on exit.  If both com and n are omitted,
                     all of the registered traps is listed.

       true          Only return with a 0 exit status.

       type [com ...]
                     Display how each com would be treated when it is used as a command name.

       ulimit [-SH] [-a-cdflmnstv] n
                     Set the resource limits for fd and its child processes to the value indicated  by  n.   You
                     can  use  the  string  unlimited  or  the  numeric  value in n, unlimited means the maximum
                     specifiable value.  (UNIX)

                     When you specify -H, a hard limit is set.  When you specify -S, a soft limit is set.   When
                     you don't specify neither of them, both limits are set.  If n is omitted, the current limit
                     is displayed.  When you specify -a, all of the resource limits is displayed.

                     When you specify the following options, the each resource  limit  is  individually  set  or
                     displayed.  If no option is specified, it is regarded as -f is specified.
                     -c   maximum core file size (in blocks)
                     -d   maximum size of data segment (in KB)
                     -f   maximum file size (in blocks)
                     -l   maximum size of locked in memory (in KB)
                     -m   maximum size of resident set (in KB)
                     -n   maximum number of open file files
                     -s   maximum size of stack segment (in KB)
                     -t   maximum CPU time (in seconds)
                     -v   maximum size of virtual memory (in KB)

       umask [nnn]   Set  the  file  creation  mask  to  nnn.   If nnn is omitted, the current value of the file
                     creation mask is displayed.  See umask(2) for details.

       unalias name  Cancel the definition of the alias name.  You can use the wildcard in name, in  this  case,
                     all  of  the matched alias definitions is canceled.  When you specify "∗", all of the alias
                     definitions is invalid.

       unset [NAME ...]
                     Delete the defined internal variable or function for each NAME.  But the following variable
                     definition cannot be deleted.
                           PATH      PS1       PS2       IFS
                           MAILCHECK PPID

       unsetdrv c device hd sc cl
                     Delete  the  registered  floppy drive.  Only the registration with which all of device, hd,
                     sc, cl is corresponded is deleted, then you should confirm to delete very well.  (UNIX)

                     When it is registered as HDD or HDD98 in setdrv, you should describe HDD or  HDD98  instead
                     of hd, sc, cl.

       wait [pidjob]
                     Wait  for the process indicated by pid or for the job indicated by job, and return its exit
                     status.  If both pid and job are omitted, all running jobs are waited.  (UNIX)

       yesno [prompt]
                     Wait for a input of y or n from the terminal, and then return 0 when y is inputted,  return
                     255  when  n  is  inputted.   Instead  of  input of y or n, you can select a character from
                     displayed [Y/N] with cursor keys and push [Return] to  be  regarded  as  an  input  of  the
                     selected  character.   An  input  of [Space] or [Esc] means the input of n.  When prompt is
                     specified, the string is displayed before [Y/N].

       COMMAND [arg] Execute the internal command COMMAND of fd.  You can describe each  command  identifier  in
                     COMMAND.  The following internal commands can take a parameter argument arg.
                     CUR_UP
                     CUR_DOWN
                     CUR_RIGHT
                     CUR_LEFT
                     ROLL_UP
                     ROLL_DOWN
                     WIDEN_WINDOW
                     NARROW_WINDOW  The number of lines, columns, or pages.
                     RENAME_FILE
                     PACK_FILE
                     BACKUP_TAPE    The filename.
                     LOG_DIR
                     MAKE_DIR
                     INFO_FILESYS
                     UNPACK_FILE    The directory name.
                     EXECUTE_SH     The command string.
                     MARK_FIND
                     FIND_FILE
                     FIND_DIR       The wildcard string.
                     MARK_ALL       0 will reset the mark of all files, the other will mark all files.
                     SORT_DIR       The number substituted for SORTTYPE the internal variable.
                     EDIT_CONFIG    The name of internal variable to be edited.

       ~  and  $  in  the previous registration string are expanded.  But these expansions are restrained in the
       string quoted with ' instead of ".

   Tree Screen
       Since representing the whole file system in tree structure takes too  many  time,  only  the  directories
       which  are  direct  ancestors and the direct sub directories are displayed, first in the tree screen.  In
       the directories which are direct ancestors, the other sub directories (if exists) are grouped  as  "...".
       These grouped sub directories will be expanded automatically when a cursor is placed on its position.

       The  sub  directories  which  are  not expanded yet are represented with '>' trailing the filename, which
       shows as they are.  Such directory is never expanded until it is required to expand explicitly, then  you
       should expand it by the following key inputs before moving to any hidden sub directory.

       In the tree screen, the following key inputs are available.
              Up, Down  Move a cursor.
              Right     Expand the sub directory on the cursor position.
              Tab       Expand the sub directory on the cursor position recursively.
              PageUp, PageDown
                        Move a cursor by half screen.
              Home(<), End(>)
                        Move a cursor to the top/bottom of tree.
              ?         Move a cursor to the current directory.
              Bs        Move a cursor to the parent directory.
              Left      Group  sub  directories of the directory on the cursor position, or move a cursor to the
                        parent directory.
              (, )      Move a cursor to the previous/next directory among the same level sub directories.
              A - Z     Move a cursor to the directory whose name starts with the character or its lowercase.
              l         Change the directory tree into the specified directory.  Moving to the floppy  drive  is
                        also available.
              ^L        Redraw the tree structure.
              Return    Select the directory.
              Esc       Cancel.

       When  directories  are  recursively  expanded,  the  machine  operation is so late that it maybe seems to
       freeze.  In this case, you can input any key while operating.  If key input is recognized while expanding
       directories,  expanding  has  been  stopped at that moment in spite of not finishing.  Even if key repeat
       keeps effective, any operation will be delayed for this function.

   Archive Browser
       When the launcher is invoked on the position of the file whose extension is registered to associate  with
       an  archive  browser,  the  archive browser screen has come.  In this screen, you can browse files in the
       archive file as well as in the normal directory.  But you cannot use the following internal  commands  in
       this screen.
              LOG_TOP        ATTR_FILE      COPY_FILE      MOVE_FILE
              DELETE_FILE    DELETE_DIR     RENAME_FILE    MAKE_DIR
              WRITE_DIR      TREE_DIR       EDIT_FILE      LOG_TREE
              COPY_TREE      MOVE_TREE      FIND_DIR       ATTR_DIR
              SYMLINK_MODE   DOTFILE_MODE   FILEFLG_MODE   SPLIT_WINDOW
              KILL_WINDOW

       When  you  want to register a new archive browser, you must describe the format listed by the archiver as
       the following representation.  One format string represents the format for 1 file in the list.
              %a        Field which indicates a file mode
              %u        Field which indicates UID of a file
              %g        Field which indicates GID of a file
              %s        Field which indicates a file size
              %y        Field which indicates a file creation year
              %m        Field which indicates a file creation month
                        (No concerning if numeric or alphabetical)
              %d        Field which indicates a file creation day
              %w        Field which indicates a file creation week (ignored)
              %t        Field which indicates a file creation time
                        ("HH:MM:SS" form, MM and SS can be lacking)
              %p        Field which indicates a file creation am/pm
              %B        Field which indicates a major device ID
              %b        Field which indicates a minor device ID
              %/str/    Field which indicates a type is directory
                        when this field string is str
                        (case insensitive)
              %!str!    0 or more continuous fields
                        which consists of the string str
                        (case insensitive)
              %f        Field which indicates a filename
              %x        Field which is needless (ignored)
              %%        % itself
              \n        Newline
              Space Tab 0 or more characters of spaces or tabs

       In this description, the field means the area separated by spaces, tabs or  newlines.   When  the  string
       which  indicates  each  information  is  separated by these characters, you can simply describe the above
       string which indicates that field.  When the  string  is  separated  by  another  character,  you  should
       describe the above string with that separator.  You can describe to indicate the field length as numeric,
       such as %10a.  This example means that the field which indicates a file mode consists of  10  characters.
       If  you describe it with a character * as the field length instead of numeric, such as %*f, the string to
       the end of line is regarded as a field, in which any space and tab will be ignored.

       When a field may have the different meanings according to situation, you should describe it quoted with {
       }, such as %{yt}.  This example means that this field indicates a creation year or a creation time.  When
       the information for 1 file consists of multiple lines, you should place a \n on the position  of  newline
       in the format string.

       For  example, the following are the format strings for the list of some archivers.  While some spaces are
       used here for easiness to see, these spaces are not always necessary because any space between fields  is
       ignored.
       `lha l'           "%9a %u/%g %s %x %m %d %{yt} %f"
       `lha v' (MS-DOS)  "%f\n%s %x %x %y-%m-%d %t"
       `tar tvf' (BSD)   "%9a %u/%g %s %m %d %t %y %f"
       `tar tvf' (SVR4)  "%a %u/%g %s %m %d %t %y %f"

       If  you  register  archive  browsers  with  above  format, in the builtin command of EXECUTE_SH or in the
       initial configuration file, you can use the archive browser which is not prepared by  default.   But,  if
       you  want  to  execute  or view files in the archive file, you must register the archiver command for the
       archive file, too, don't forget this.

       On some OS, tar(1) may  output  the  Japanese  timestamp  when  japanese  is  substituted  for  LANG  the
       environment  variable.  Since fd cannot analyze the representation like this, you should describe `export
       LANG=C' in the initial configuration file, or specify LANG in the description of listing command, such as
       `LANG=C tar tvf'.

   Floppy Drive (UNIX)
       You  can  access  the MS-DOS formatted floppy disk, by representing to prefix "c:" to the directory name.
       But, it is necessary to register the floppy drive and set DOSDRIVE the internal variable which makes this
       function effective, in advance.

       Each  registered  drive  is  distinguished  with the drive name.  You should tag the physically different
       drive as the different drive name.  When the same physical  drive  supports  multiple  formats,  you  can
       register  each  format  with the same drive name, or the different drive name each other.  If you tag the
       same drive name, the justice of the format is tried in registered order, so that you should register  the
       format which you often use in the first place.

       Each  drive  of  the floppy drive has the its own current directory.  The default value of this is a root
       directory, and the current directory is moved back to a root directory again whenever you change a floppy
       disk.   When  you  describe the directory name as starting with '/' after ':', it means the absolute path
       representation of that drive.  If this '/' is not exist, it means the relative path  representation  from
       the current directory of that drive, don't forget this.

       Regrettably,  some  internal  commands  like  as WRITE_DIR, INFO_FILESYS cannot support the floppy drive.
       Some filenames are renamed when they are copied from UNIX for reason of the filename length limit.

       When you use a lowercase letter as the drive name, you can access it as the floppy drive which can  treat
       the  Long File Name (LFN) for MS-Windows formatted floppy disk.  In this case, you can copy a file with a
       long filename on UNIX as it is.  But, when the UNICODE translation table fd-unicd.tbl does not  exist  in
       the  same directory as the invoked fd exists, any Kanji filename cannot be treated as LFN representation.
       Reversely, when you use a uppercase letter as the drive name, LFN is ignored and 8+3 formed  filename  is
       treated.  MS-DOS version inherits this specification by the case of a drive name.

   URL Drive (UNIX)
       You can access remote services on the network, by representing the URL string as the directory name.  The
       URL format is scheme://[user[:password]@]host[:port]/directory/.  You can specify ftp or http as  scheme.
       You  can  specify the name or IP address of the remote host as host.  You can specify the TCP port number
       as port.  If port is omitted, the default port number is used.  The default port number for  ftp  is  21,
       and  the  default  port number for http is 80.  You can specify account information to connect the remote
       host as user and password.  If user is omitted, the anonymous FTP connection will be used  with  ftp,  or
       you will be queried as needed with http.  If password is omitted, you will be queried as needed.  But, it
       is necessary to set URLDRIVE the internal variable which makes this function effective, in advance.

       Regrettably, some internal commands cannot support the URL drive, for the sake of restrictions of the FTP
       and HTTP protocols or settings of the host side.

   String Input
       When  you  input  the  string, such as the pathname, the following key inputs are available.  The kind of
       referred history differs with the input string required.  In the split window mode, the current directory
       of another window is always placed on the top of the pathname history.
       Left, Right
                 Move a cursor.
       Up, Down  Refer the previous histories (only commands and pathnames), or move a cursor.
       Beg       Move a cursor to the beginning of string.
       Eol       Move a cursor to the end of string.
       Ins       Switch a input method to the insert/overwrite mode.  (Default value is the insert mode.)
       Del       Delete a character on the cursor position.
       Bs        Delete a character before the cursor position.
       DelLine   Delete a string after the cursor position.
       InsLine   Treat the next input character as it is, effective to input control characters.
       Enter     Insert a filename of the file on the cursor position.
       PageUp    Convert a character on the cursor position to uppercase.
       PageDown  Convert a character on the cursor position to lowercase.
       Tab       Complete a pathname, a command name or a variable name on the cursor position.
                 When  there  are  two  or  more completion choices, inputting this continuously can display the
                 completion choice list.  Except for command line in the internal shell, you can make  a  choice
                 from this list with cursor keys and [Return].
       ^L        Redraw the input string.
       ^S, ^R    Search the previous histories (only commands and pathnames) incrementally.
       Return    Decide the input, or decide the choice in the completion choice list.
       Esc       Cancel.

       The  inputted  string is expanded before evaluation as following.  These expansions are also valid in the
       string of command macros.  But these expansions are restrained in the string quoted  with  the  quotation
       mark '.

       ~       Indicate your home directory, when it is the beginning of filename.

       ~user   Indicate user's home directory, when it is the beginning of filename.  (UNIX)

       ~FD     Indicate the directory where the invoked fd is exists, when it is the beginning of filename.

       $NAME
       ${NAME} Indicate  the  value  of  NAME  the internal variable or the environment variable.  When both are
               defined, the internal variable is prior.  When both are undefined, it is replaced  a  null.   The
               brace { } separates NAME from its trailing characters.

               When  NAME  is  the following character, it is replaced by the value substituted automatically by
               the shell.
               0      The executable filename when invoked.
               [1-9]  The positional parameter.
                     The all positional parameters which starts from $1.  "$∗" is replaced by "$1 $2 ...".
               @      The all positional parameters which starts from $1.  "$@" is replaced by "$1" "$2" ... .
               #      The number of positional parameters.
               -      The option flags which is set by options when invoked or set the builtin command.
               ?      The exit status of the last executed command.
               $      The process number of the current shell.
               !      The process number of the last executed background process.

       ${NAME:-word}
               If the value except a null is substituted for NAME  the  internal  variable  or  the  environment
               variable, it is replaced by the value, otherwise it is replaced by word.

       ${NAME:=word}
               If  the  value  except  a  null  is substituted for NAME the internal variable or the environment
               variable, it is replaced by the value, otherwise  word  is  substituted  for  NAME  the  internal
               variable,  and  this  expression itself is replaced by word.  But you cannot substitute the value
               for any positional parameter.

       ${NAME:?word}
               If the value except a null is substituted for NAME  the  internal  variable  or  the  environment
               variable,  it  is replaced by the value, otherwise display word and exit from the shell.  If word
               is omitted, the string ``parameter null or not set'' is displayed in its place.

       ${NAME:+word}
               If the value except a null is substituted for NAME  the  internal  variable  or  the  environment
               variable, it is replaced by word, otherwise it is replaced by a null.

       ${NAME-word}
               If  any  value  is  substituted for NAME the internal variable or the environment variable, it is
               replaced by the value, otherwise it is replaced by word.

       ${NAME=word}
               If any value is substituted for NAME the internal variable or the  environment  variable,  it  is
               replaced  by  the  value,  otherwise word is substituted for NAME the internal variable, and this
               expression itself is replaces by word.  But you cannot substitute the value  for  any  positional
               parameter.

       ${NAME?word}
               If  any  value  is  substituted for NAME the internal variable or the environment variable, it is
               replaced by the value, otherwise display word and exit from the shell.  If word is  omitted,  the
               string ``parameter null or not set'' is displayed in its place.

       ${NAME+word}
               If  any  value  is  substituted for NAME the internal variable or the environment variable, it is
               replaced by word, otherwise it is replaced by a null.

       ${#NAME}
               It is replaced by the length in characters of the value of NAME  the  internal  variable  or  the
               environment  variable.   If NAME is * or @, it is replaced by the number of positional parameters
               instead of the length of characters.

       ${NAME%word}
               It is replaced by the string in which the smallest portion of the  suffix  matched  by  the  word
               pattern  is deleted from the value of NAME the internal variable or the environment variable.  If
               NAME is * or @, each positional parameter is replaced.  ( \  is  used  instead  of  %  on  MS-DOS
               version.)

       ${NAME%%word}
               It  is  replaced  by  the  string  in which the largest portion of the suffix matched by the word
               pattern is deleted from the value of NAME the internal variable or the environment variable.   If
               NAME  is  *  or  @,  each positional parameter is replaced.  ( \\ is used instead of %% on MS-DOS
               version.)

       ${NAME#word}
               It is replaced by the string in which the smallest portion of the  prefix  matched  by  the  word
               pattern  is deleted from the value of NAME the internal variable or the environment variable.  If
               NAME is * or @, each positional parameter is replaced.

       ${NAME##word}
               It is replaced by the string in which the largest portion of  the  prefix  matched  by  the  word
               pattern  is deleted from the value of NAME the internal variable or the environment variable.  If
               NAME is * or @, each positional parameter is replaced.

       \c      It indicates a character c itself.  You can use it when you  want  to  use  the  preceding  meta-
               character  as a character with no evaluation, such as ~ or $.  You can describe \ itself as "\\".
               But, on MS-DOS version, because \ which is used as the pathname delimiter must be treat  as  well
               as the normal character, %c is expediently used in place of \.

       The following is replaced only in the shell which is executed by EXECUTE_SH and EXECUTE_FILE.

       `list`  List is executed and this string is replaced by its standard output.

       $(list) List is executed and this string is replaced by its standard output like as `list`.  This differs
               from `list` in the point that nested expressions are allowed.  And any  meta-characters  such  as
               quotes in list are evaluated as it is.

       $((expression))
               Expression  the  arithmetic  expression  is  evaluated  and this string is replaced by its result
               value.  You can specify numeric values, variables and integral calculations  with  the  following
               operators in expression.
                                     (unary) (binary)
                   arithmetic        + -     + - * / %
                   boolean           !       == != < > <= >= && ||
                   bit operator      ~       & | ^ << >>
                   parenthesis       ( )

       ?
       
       [
       ]       The  string  including these letters is pattern-matched with existent files.  When it is matched,
               it is replaced by all of the matched filenames which are sorted in alphabetical order.
               ?    Match any single character except /.
                   Match any 0 or more length string not including /.
               ∗∗   Match any 0 or more length string including /.
               [...]
                    Match any one of the characters enclosed by [ ].  When enclosed  characters  include  -,  it
                    matches any character whose character code is between characters before/after -.
               [!...]
                    Match any one of the characters not enclosed by [ ].

               But, when the first character of the filename is ., ?,  and ∗∗ don't match it.

   Edit Mode
       When  you  want to use some functions bound to special keys, such as a cursor key or a scroll key, such a
       key doesn't exist in some terminals.  In such a case, substituting the string for EDITMODE  the  internal
       variable can make you use some control keys as alternative to these special keys.  Since this alternative
       key function is prior to the key binding by the builtin command, the  key  binding  is  invalid  for  the
       control characters used as the alternative keys.  The prepared edit modes are the following 3 modes.

       emacs
                   ^P   = Up      ^A   = Beg
                   ^N   = Down    ^E   = Eol     ^D   = Del
                   ^F   = Right                  ^Q   = InsLine
                   ^B   = Left                   ^K   = DelLine
                   ^V   = PageDn  ^Y   = PageUp  ^O   = Enter
                   ^M   = Return  ^I   = Tab     ^H   = Bs
                   ^[   = Esc     ^G   = Esc

       wordstar
                   ^E   = Up      ^A   = Beg     ^V   = Ins
                   ^N   = Down    ^F   = Eol     ^G   = Del
                   ^F   = Right   ^W   = Home    ^]   = InsLine
                   ^S   = Left    ^Z   = End     ^Y   = DelLine
                   ^C   = PageDn  ^R   = PageUp  ^N   = Enter
                   ^M   = Return  ^I   = Tab     ^H   = Bs
                   ^[   = Esc

       vi      Vi  mode  has  the  2 local modes: "insert mode" and "command mode", and the function of keys are
               quite different with each mode.  You are in the command mode when you start to  input,  then  you
               must input any key among 4 keys which switch to the insert mode, in order to input normal keys.
                   (command mode)
                   k    = Up      0    = Beg
                   j    = Down    $    = Eol     x    = Del
                   l    = Right   g    = Home
                   h    = Left    G    = End     D    = DelLine
                   ^F   = PageDn  ^B   = PageUp  o    = Enter
                   ^M   = Return  ^I   = Tab     ^H   = Bs
                   ^[   = Esc
                   (from command mode to insert mode)
                   i, : = only switch its mode
                                  I    = + Beg
                   a    = + Right A    = + Eol
                   R    = overwrite
                   r    = overwrite once
                   (insert mode)
                   ^V   = InsLine Esc  = to command mode

               This  key  binding  is  so  particular  that it is not suitable for those who don't use vi editor
               everyday.

   Kana-Kanji IME (UNIX)
       You can input strings in the Kana-Kanji IME mode, if you input the key  specified  by  IMEKEY  or  select
       "Kanji" from the pseudo terminal menu.

       The  translation  performance  will depend on the Kana-Kanji translation dictionary fd-dict.tbl.  When it
       does not exist in the same directory as  the  invoked  fd  exists,  translation  to  Kanji  will  not  be
       available.   The  standard  installed dictionary file is the Tan-Kanji dictionary, which can support only
       the Tan-Kanji translation.  The dictionaly such as the pubdic, which includes the Hinsi information, will
       bring you the Tan-Bunsetsu translation.  The Ren-Bunsetsu translation is not be supported.

       In the Kana-Kanji IME mode, the following key inputs are available.
              Space     Trancelate to Kanji, or select the next translation candidate.
              Left, Right
              Up, Down  Move a cursor in the list of the translation candidate.
              Bs, Del   Delete a character before the cursor position.
              Tab       Toggle Hiragana, Katakana, Hankaku-Kana and the direct input.
              ^L        Redraw the input string.
              Return    Decide the translation result.
              Esc       Cancel.

       When  you  translate  the  string  of the capital 4 digit hexadecimal prefixed by a capital letter, it is
       regarded as the hexadecimal showing the following  Kanji  code  respectively.   Then  the  menu  will  be
       displayed to select Kanji next to the Kanji code number.
              S   Shift JIS
              E   EUC-JP
              J   JIS code (JIS X0208)
              K   Kuten code
              U   UNICODE (UCS2)
       When you input [Space] in the state where you decide an un-translated Kana, it is regarded as the initial
       reading of Kanji.  Then the menu will be desplayed to select Kanji whose reading starts with the Kana.

   Parameter Macros
       You can use the following parameter macros in the string which is used for the  registration  of  command
       macros  and  for executing command.  But, you cannot use them in the functions, the input file for source
       command, and the initial configuration file, then you should use evalmacro command when you want  to  use
       any parameter macro in them.

       %C      The  filename  on  the  cursor  position.  Or, it indicates the archive filename, in the macro to
               register the archiver command.

       %X      The filename except its extension on the cursor position.  Or, it indicates the archive  filename
               except its extension, in the macro to register the archiver command.  Only the last one extension
               is removed.  T, TA, M trailing %X are replaced by %T, %TA, %M except its extension  respectively.
               On MS-DOS version, you can describe a trailing S as well as them.

       %P      The pathname of the current directory.

       %K      Prompt  and  return  to  fd  after  a  command is finished.  But, the meaning of %K is reverse in
               EXECUTE_FILE and EXECUTE_SH; it prompts by default and doesn't prompt if %K  is  specified.   You
               can  never specify to prompt in macros to register the archive browser of the launcher and macros
               to register the archiver command.

       %T      List marked files separated by spaces as possible.  When files are so many that the command  line
               length exceeds the OS limitation, the rest of marked files are ignored.

       %TA     List  marked  files  as  well  as %T, and repeat the same command for spilt files to complete all
               marked files.

       %M      Execute the same command as many times as marked files, sending the marked file one by  one.   It
               is useful to mark files by MARK_FIND and execute "mv %M %XM.bak" by EXECUTE_SH.

       %N      Restrain the filename addition even if the parameter is omitted.

       %R      Make you input the additional parameter in executing a macro, if the length of command string has
               enough margin.  The cursor position in input is placed on the position of %R in a macro.  But, %R
               is  ignored  in  macros  to  register the archive browser of the launcher, macros to register the
               archiver command, and EXECUTE_FILE, EXECUTE_SH.

       %S      The 8+3 formed filename with which the LFN formed filename on the cursor  position  is  replaced.
               You  can use it when you use external commands which can treat only 8+3 formed arguments.  T, TA,
               M trailing %S can be described as well as %X.  (DOS)

       %JS     The Kanji code of the string enclosed by this macro is converted into Shift JIS.  (UNIX)

       %JE     The Kanji code of the string enclosed by this macro is converted into EUC-JP.  (UNIX)

       %J7     The Kanji code of the string enclosed by this macro is converted into 7bit JIS.  (UNIX)

       %J8     The Kanji code of the string enclosed by this macro is converted into 8bit JIS.  (UNIX)

       %JJ     The Kanji code of the string enclosed by this macro is converted into ISO-2022-JP.  (UNIX)

       %JH     The Kanji code of the string enclosed by this macro is converted into HEX.  (UNIX)

       %JC     The Kanji code of the string enclosed by this macro is converted into CAP.  (UNIX)

       %JU     The Kanji code of the string enclosed by this macro is converted into UTF-8.  (UNIX)

       %JM     The Kanji code of the string enclosed by this macro is converted into UTF-8 for Mac OS X.  (UNIX)

       %JI     The Kanji code of the string enclosed by this macro is converted into UTF-8 for iconv,  which  is
               used on environments using iconv-based UTF-8 such as Linux.  (UNIX)

       %JA     The  Kanji  code  of  the string enclosed by this macro is converted into the Kanji code which is
               used in the pathname indicated by the string.  The variables SJISPATH, EUCPATH, etc. can  specify
               what kanji code is used in each pathname.  (UNIX)

       When  no  filename parameter, such as %C and %T, is taken with the result to expand parameter macros in a
       command macro, the filename on the cursor position is automatically added to the last of expanded string,
       as  ./filename  form.   This  addition is not done, in case of the input string for executing command, or
       when %N macro is specified.

   Customize
       You can customize fd as the  following  ways.   If  you  specify  some  configuration  in  multiple  ways
       overlapped, it is prior in this order.

          Executing builtin commands with EXECUTE_SH
                    You can execute builtin commands for each registration for the internal variable definition,
                    the environment variable definition, the alias definition, the function definition, the  key
                    binding,  the keymap changing, the launcher registration, the archiver command registration,
                    and the floppy drive registration.

          Customizer
                    EDIT_CONFIG command is available for the internal variable definition, the key binding,  the
                    keymap  changing,  the  launcher  registration,  the  archiver command registration, and the
                    floppy drive registration.

          Command line options
                    You can specify the command line options as  `-NAME=value'  form,  to  define  the  internal
                    variables.

          .fd2rc    You can prepare the initial configuration file .fd2rc on your home directory, to execute the
                    command which is written in this file, before the startup of fd.  You can  describe  builtin
                    commands  and  external  commands  in  it  to  set up each configuration.  Yet, when fdsh is
                    invoked as a login shell, .fdshrc is read instead of .fd2rc.

                    The initial configuration file /etc/fd2rc which is prepared by  a  system  administrator  is
                    read preceding .fd2rc and .fdshrc.  If this file exists, the initial configurations prepared
                    by a system administrator are valid unless you  intentionally  delete  them  in  .fd2rc  and
                    .fdshrc.

                    (On MS-DOS version, these filenames are $HOME\fd2.rc, $HOME\fdsh.rc and ~FD\fd2rc.)

          Environment variables
                    Any  valid  variable  name  as  the  internal  variable  can  be  valid to be defined as the
                    environment variable in  advance.   But  the  internal  variable  is  always  prior  to  the
                    environment  variable  in  fd.   When the same named environment variable is used in another
                    application, you can also use the name which FD_ is prefixed to  each  environment  variable
                    for fd only.  This environment variable with FD_ is always prior to the environment variable
                    without it, then the definition of the  environment  variable  with  FD_  is  prior  to  the
                    definition of the internal variable without FD_.

   Customizer
       EDIT_CONFIG  command  invokes  the customizer to set up configurations interactively.  You can select the
       category with the right/left cursor key, and select the item with the up/down cursor key, and change  its
       content with [Return].  When you finish to change, exit from the customizer with [Esc].

       The following categories are prepared.
          Variables Change  the  value  of internal variables.  The input method is different with the variable,
                    then you should input following the guidance on screen.
          Key bind  Change the command bound to each key.  When you newly bind a command  to  the  key  with  no
                    binding,  you  should  select  "NewEntry".   If  you  select "Delete bind", the existent key
                    binding is deleted.
          Key map   Change the key code mapping for each special key.  If you push [Esc] when you  are  prompted
                    to push the key, the existent key mapping is deleted.  (UNIX)
          Launcher  Change the launcher registration for each extension.  When you newly register a launcher for
                    the extension with no registration, you should select "NewEntry".  If you input a null  line
                    when you input a command for the launcher, the existent launcher registration is deleted.
          Archiver  Change  the  archiver  command  registration  for each extension.  When you newly register a
                    archiver command for the extension with no registration, you should select  "NewEntry".   If
                    you  input  a null line both when you input a command for pack/unpack, the existent archiver
                    command registration is deleted.
          DOS drive Change the floppy drive registration.  When you newly register a floppy drive for the  drive
                    name  with no registration, you should select "NewEntry".  If you input a null line when you
                    input a device name, the existent floppy drive registration is deleted.  (UNIX)
          Save      Save the configurations changed with the customizer into a file, or cancel configurations to
                    restore to the previous state.
                    Cancel    Cancel  the changed configurations within the specified categories, and restore to
                              the state before the customizer is invoked.
                    Clear     Cancel all the configurations within the specified categories, and restore to  the
                              default state.
                    Load      Load configurations from the specified file.
                    Save      Save all the configurations within the specified categories to the specified file.
                    Overwrite Overwrite  all the configurations within the specified categories to the specified
                              existent file.  The original configurations which has  existed  in  the  file  are
                              parsed, and the configuration for the same target is overwritten at the same place
                              as possible.  The  configurations  which  are  not  set  up  at  present  and  the
                              configurations which are not supported by the customizer are remains as it is.

                    When  you  specify the range of categories, all categories are selected by default, then you
                    should turn on/off each selection with [Space] and decide with [Return].

       If you try to exit from the customizer without saving after  changing  any  configuration,  you  will  be
       confirmed whether if it is right to exit without saving.  While the changed configurations themselves are
       valid even if you exit without saving, when you want them to be valid in the next invoked  fd,  you  must
       save them into the initial configuration file.

ENVIRONMENT VARIABLES

       The  following  environment  variables are valid in fd.  These environment variables can be valid if they
       are defined as the internal variables.  You can specify them as the command line options in `-NAME=value'
       form.  But the variables followed by ∗ cannot be use with the prefix FD_ as the environment variables.

       ADJTTY        Reset the terminal mode forcedly to the normal state, when fd is finished.  Invoking fd can
                     adjust the terminal rightly from the state displaying broken characters.  Any value  except
                     0 and null effects valid.  (UNIX)

       ANSICOLOR     Colorize  the  file  display.   When  the terminal which you use supports the color control
                     escape sequence of ANSI standard, each file is displayed with color according to  its  file
                     type.   If  the  value  is  1, it is colorized.  If the value is 2, the background color is
                     forced to be black, for the case that the foreground color is the same  as  the  background
                     color  and  indistinguishable.   If  the  value  is 3, the foreground color is forced to be
                     black.

       ANSIPALETTE   Specify color palette according to file type when the  file  display  is  colorized.   This
                     variable  value  consists  of  a  numeric  value whose maximum columns are 11 columns.  The
                     number of each column shows a  color  number,  which  specifies  the  color  of  file  type
                     corresponding  with  its  column.  The following are correspondence of the column number to
                     the file type.
                         1    normal file
                         2    background
                         3    directory
                         4    unwritable file
                         5    unreadable file
                         6    symbolic link
                         7    socket (or system file on MS-DOS)
                         8    FIFO (or label on MS-DOS)
                         9    block device
                         10   character device
                         11   executable file

                     The following are the meaning of color number specified on each column.
                         0    black
                         1    red
                         2    green
                         3    yellow
                         4    blue
                         5    magenta
                         6    cyan
                         7    white
                         8    default color for foreground
                         9    default color for background

                     The color number 8 is forced to be black, if the value of ANSICOLOR the variable is 3.  The
                     color number 9 is forced to be black, if the value of ANSICOLOR the variable is 2.

                     When  the  columns are less than 11 or this variable is not set, the standard color palette
                     will be applied for the file type corresponding with the following columns.   The  standard
                     color palette is described with the above color number as 89624351888.

       AUTOUPDATE    Specify  the  interval  in  seconds  to update automatically the browser screen or the tree
                     screen.  When the key input idles for the specified seconds,  the  current  information  of
                     file  list  will  be  updated.   If  this  value  is  0,  the  screen  will  never  updated
                     automatically.  The default value is 0.

       BASICCUSTOM   Limit the internal variables for configuration only to basic variables in  the  customizer,
                     to hide advanced variables.  Any value except 0 and null effects valid.

       CDPATH∗       Specify  the  search path when an argument of cd the builtin command does not start with /.
                     You can specify multiple paths separating  with  ':'.   No  search  path  is  specified  by
                     default.

       COLUMNS∗      The  variable  for the columns of a terminal screen.  If some value is set, this value will
                     be replaced automatically according to changing the screen size.  If no value is set,  this
                     value will remain unset.

       COMSPEC       Specify  the  shell  used to invoke a batch file.  If undefined, the shell defined by SHELL
                     the internal variable or \COMMAND.COM is used.  (DOS)

       COPYCMD∗      Specify the default options used by copy the builtin command.

       DEFCOLUMNS    Specify the columns displayed in the screen when fd is invoked.  The default  value  is  2.
                     If you specify the value except 1, 2, 3 and 5, it is ignored.

       DEFKCODE      Specify  the  system default Kanji code.  The arguments passed to external commands invoked
                     from fd will be converted into the specified Kanji code.  When you use macros  such  as  %C
                     and  %JJ,  it  will be converted into the Kanji code according to each macro.  JIS8, JUNET,
                     HEX, CAP, etc. among them are the Kanji codes used in Samba.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         HEX, hex       HEX
                         CAP, cap       CAP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       DIRCOUNTLIMIT Specify the maximum number of files read from the directory in the tree screen.   When  the
                     directory  trailed by '>' has no sub directory, the expanded result is not changed.  If the
                     number of files (including  directories)  in  the  directory  is  within  this  value,  the
                     directory with no sub directory is not trailed '>' from the first.  Moreover, the file list
                     in the directory displayed on the right of screen is not displayed  over  this  value.   If
                     this  value  is  0, you can realize a comfortable operation speed even in the slow machine.
                     The default value is 50 files.

       DIRCMD∗       Specify the default options used by dir the builtin command.

       DIRHIST       Specify the maximum number of  the  directory  histories  which  can  be  referred  by  the
                     directory  input  line.   The default value is 50.  If this value is 0, you can refer to no
                     directory history.

       DIRHISTFILE   Specify the name of the directory history file which can be referred by the directory input
                     line.   Unless  you specify it, the directory history is not loaded nor saved.  The default
                     value is not specified.

       DIRHISTUMASK  Specify the file creation mask with octal expression for the directory history file.  It is
                     used  only if no existent file exists.  But the mask value set by umask the builtin command
                     is prior, then actual mask value is the logical OR of this value and umask value.

       DISPLAYMODE   Specify the filename display mode of the file  list  when  fd  is  invoked.   Each  of  the
                     symbolic link mode, the file type symbol mode and the dot file display mode can be selected
                     individually.  The default value is 0.  The following are specifiable values.
                         0    standard
                         1    SYMLINK
                         2                FILETYPE
                         3    SYMLINK &   FILETYPE
                         4                             DOTFILE
                         5    SYMLINK &                DOTFILE
                         6                FILETYPE &   DOTFILE
                         7    SYMLINK &   FILETYPE &   DOTFILE

                     Moreover, on the OS which supports the file flag, if you specify the value adding 8 to each
                     value, you can select the file flag display mode.

       DOSDRIVE      Validate  the access function to the MS-DOS floppy.  If no floppy drive is registered, this
                     validation cannot make you access the floppy.  Any value except 0 and null effects valid.

                     On MS-DOS version, This definition can make you treat the LFN formed filename  in  the  old
                     DOS  before  Ver.  6.xx.   In  this case, you don't have to register any floppy drive.  the
                     access speed may be slow or some functions may be restricted for the reason to operate  the
                     disk I/O not by way of OS.

       DUMBSHELL     Don't  use  any  control  sequences  to  edit  command  line in the internal shell.  In the
                     internal shell, the cursor addressing of terminal mode is  not  valid.   In  case  of  some
                     terminal  such  as  a console terminal, the cursor addressing cannot work correctly in this
                     terminal mode, and the editing string is displayed  incorrectly.   When  this  variable  is
                     valid,  while  no  control  sequence  is  used  to edit command line, an inefficient cursor
                     addressing will cause restriction of some functions and failure  of  response.   Any  value
                     except 0 and null effects valid.

       EDITMODE      Specify  the  edit mode of key input as the string.  The default value is emacs.  The value
                     except emacs, wordstar and vi or null are specified, any control character is not converted
                     and will be sent as it is.

       EDITOR        Specify the editor command used for editing files.

       ENV∗          Specify  the  additional initial configuration file when invoked as fdsh.  You must specify
                     its filename as fullpath.  When this variable is set, the  initial  configuration  file  is
                     read  after  /etc/fd2rc,  and before .fd2rc or .fdshrc.  This value will be ignored if your
                     real and effective UIDs or real and effective GIDs are different.

       FCEDIT        Specify the editor command used for fc the builtin command.

       FD_VERSION    A version string of the running fd.

       FNAMEKCODE    Specify the Kanji code for filename.  Any filename is converted into  the  specified  Kanji
                     code  at  the point of accessing the file, then you can refer to the file which has a Kanji
                     filename from another machine on network which use a different  Kanji  code.   The  archive
                     browser  and  browse the builtin command also refer the specified Kanji code.  JIS8, JUNET,
                     HEX, CAP, etc. among them are the Kanji codes used in Samba.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         HEX, hex       HEX
                         CAP, cap       CAP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       FREQFILE      Specify the translation frequency file for the users Kana-Kanji translation  learning.   If
                     the  filename  is not defined, the frequency information will not be saved nor be referred.
                     The default value is ~/.fd_freq.  (UNIX)

       FREQUMASK     Specify the file creation mask with octal expression for the translation frequency file for
                     the  users Kana-Kanji translation learning.  The updated translation frequency file will be
                     rebuilt, not be overwritten, so that it is used even if existent file exists.  But the mask
                     value  set  by umask the builtin command is prior, then actual mask value is the logical OR
                     of this value and umask value.  (UNIX)

       FTPADDRESS    Specify the mail address used as the  password  for  anonymous  FTP,  when  the  URL  drive
                     connects the FTP host.  The default value is FDclone@.  (UNIX)

       FTPLOGFILE    Specify  the  filename  to  which  communication  logs  are  outputted,  when the URL drive
                     communicates with the FTP host.  If it is not specified as fullpath nor you  don't  prepare
                     the directory in which the log file is stored, no log will be outputted.  (UNIX)

       FTPPROXY      Specify  the  URL  used as the proxy server, when the URL drive connects the FTP host.  The
                     URL format is scheme://[user[:password]@]host[:port].  You  can  specify  ftp  or  http  as
                     scheme.   You  can  specify  account  information  to  connect the proxy server as user and
                     password.  The default value is not specified.  (UNIX)

       FUNCLAYOUT    Specify the layout of the function line, as the form of n * 100 + size.  N means the number
                     of  function  keys  to  be  displayed  in  the function line.  Size means the block size of
                     function keys to be displayed.  The default value is 1005.  (It means 10 function keys will
                     be displayed, 5 of which are grouped.)

       HIDEPASSWD    Suppress displaying * as a replacement for the inputted letter, when the URL drive requires
                     you to input a password.  Any value except 0 and null effects valid.  (UNIX)

       HISTFILE      Specify the name of the command history file which can  be  referred  by  EXECUTE_FILE  and
                     EXECUTE_SH.   Unless  you  specify  it,  the  command history is not loaded nor saved.  The
                     default value is ~/.fd_history.

                     (On MS-DOS version, The default value is $HOME\fd.hst.)

       HISTSIZE      Specify the maximum number of the command histories which can be referred  by  EXECUTE_FILE
                     and  EXECUTE_SH.  The default value is 50.  If this value is 0, you can refer to no command
                     history.

       HISTUMASK     Specify the file creation mask with octal expression for the command history file.   It  is
                     used  only if no existent file exists.  But the mask value set by umask the builtin command
                     is prior, then actual mask value is the logical OR of this value and umask value.

       HOME∗         Specify the default value when no argument of cd the builtin command  is  specified.   When
                     invoked  as a login shell, if this variable is specified that directory becomes the current
                     directory, otherwise your home directory is automatically defined as this value.

       HTMLLOGFILE   Specify the filename to which received HTML data log are  outputted,  when  the  URL  drive
                     communicates  with the HTTP host.  If it is not specified as fullpath nor you don't prepare
                     the directory in which the log file is stored, no log will be outputted.  (UNIX)

       HTTPLOGFILE   Specify the filename to  which  communication  logs  are  outputted,  when  the  URL  drive
                     communicates  with the HTTP host.  If it is not specified as fullpath nor you don't prepare
                     the directory in which the log file is stored, no log will be outputted.  (UNIX)

       HTTPPROXY     Specify the URL used as the proxy server, when the URL drive connects the HTTP  host.   The
                     URL format is scheme://[user[:password]@]host[:port].  You can specify http as scheme.  You
                     can specify account information to connect the proxy server  as  user  and  password.   The
                     default value is not specified.  (UNIX)

       IFS∗          Specify the internal field separators.  They are used in EXECUTE_SH to separate command and
                     arguments.  Space, tab and newline are specified by default.

       IGNORECASE    Ignore uppercase/lowercase when filenames are  compared.   Any  value  except  0  and  null
                     effects valid.  (UNIX)

       IMEBUFFER     Specify  whether  if the Kana-Kanji translation table is held on memory or not.  It will be
                     fast to translate strings from Kana to Kanji.  You should  set  this  if  you  have  enough
                     memory.  The following are specifiable values.  (UNIX)
                         0    not hold on memory
                         1    only the Hinsi information table
                         2    also includes the index tables
                         3    hold all tables

       IMELEARNING   Specify  the  learning  level  with the translation frequency file for the users Kana-Kanji
                     translation learning.  The larger value will  increase  the  importance  of  the  frequency
                     information.   If  the  value  is  0,  the frequency information is only saved, without any
                     reference.  The default value is 16.  (UNIX)

       IMEKEY        Specify the key to toggle the direct input mode and the Kana-Kanji IME mode when you  input
                     some  strings.   You  can describe the same key name as bind command.  The default value is
                     not specified.  (UNIX)

       INHERITCOPY   Inherit the destination timestamp from the  source  timestamp  when  COPY_FILE  command  is
                     executed.  Any value except 0 and null effects valid.  (UNIX)

                     (On  MS-DOS  version,  the  destination  timestamp is always inherited, if this variable is
                     effective or not.)

       INPUTKCODE    Specify the Kanji code for input from keyboard.  When the value  except  the  following  is
                     specified, the Kanji code specified in compile is valid.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv

       LANGUAGE      Specify  the  language for display character.  It means not only each messages displayed by
                     fd, but also a Kanji code of filename to be  converted.   The  following  is  the  kind  of
                     languages, it doesn't have to be the string itself and is enough to contain the string, the
                     value of LANG the environment variable also can be used.  JIS8, JUNET, etc. among them  are
                     the Kanji codes used in Samba.
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         en, C, POSIX   English (message only)
                         default        no convert

                     (On MS-DOS version, only the English is valid.)

       LINENO∗       Indicate  the current line number.  When not in a script nor function, this value cannot be
                     guaranteed to make sense.  If you unset or reset this value, this variable  will  lose  its
                     special meaning to be treated as a general variable.

       LINES∗        The  variable for the lines of a terminal screen.  If some value is set, this value will be
                     replaced automatically according to changing the screen size.  If no  value  is  set,  this
                     value will remain unset.

       LOGFILE       Specify  the  log  filename with the level spacified by LOGLEVEL or ROOTLOGLEVEL.  If it is
                     not specified as fullpath, it will be regarded as the path under your home directory.   You
                     must prepare the directory in which the log file is stored, because any directories are not
                     created automatically.  The default value is not specified.

       LOGLEVEL      Specify the priority for the log contents.  The default value is 0.
                         0       no log
                         1       only warning such as writing
                         2       notice such as changing, and over
                         3       info. such as refering, and over
                         >= 4    debug level, and over

                     The same operation can result as an error to output the log in  the  lower  priority  by  1
                     level.

       LOGSIZE       Specify  the  maximum  kilobyte  size  for  the log file specified by LOGFILE.  If the size
                     exceeds this value, the last log file will be renamed  as  the  filename  followed  by  the
                     extension  .old  to  create another new log file.  The default value is 1024(1MB).  If this
                     value is 0, the log file will not be renamed.

       LOOPCURSOR    Loop a cursor moving within the same page, when you move a cursor.  Any value except 0  and
                     null effects valid.

       MAIL∗         Specify  the  spool  filename when the internal shell will check new mails.  If MAILPATH is
                     set, it is prior to this.  (UNIX)

       MAILCHECK∗    Specify the interval of checking new mails in seconds, for the  spool  files  specified  by
                     MAILPATH  or  MAIL.   The  default  value  is  600 seconds.  If this value is 0, it will be
                     checked before each prompt.  (UNIX)

       MAILPATH∗     Specify the multiple spool filenames, as the list separated by :, when the  internal  shell
                     will  check  new  mails.   The  any specified files will be checked.  Each filenames can be
                     followed by % and a arrival message of new mails.  The default message is  you  have  mail.
                     (UNIX)

       MESSAGELANG   Specify  the  language  for  display character.  The language of messages specified by this
                     will be prior to the one specified by LANGUAGE.  When the message is  Japanese,  the  Kanji
                     code  will be defined by the value of LANGUAGE.  The following is the kind of languages, it
                     doesn't have to be the string itself and is enough to contain the string, the value of LANG
                     the  environment  variable also can be used.  Otherwise, In case of some additional message
                     catalogs are prepared, you can specify its extension as the catalog name for MESSAGELANG to
                     replace messages.
                         en, C, POSIX   English
                         ja             Japanese
                         default        the value of LANGUAGE

       MINFILENAME   Specify  the  minimum character length of filename display area in the file list.  When the
                     area enough to be specified here cannot be obtained, the  information  is  reduced  in  the
                     order of UID, GID, timestamp, size.  The default value is 12 characters.

       OPTARG∗       An option argument is substituted in getopts the builtin command.

       OPTIND∗       Specify the index of the next parameter in getopts the builtin command.

       PAGER         Specify the pager command used for viewing files.

       PATH∗         Specify  the  search  path for executing external commands.  You can specify multiple paths
                     separating with ':'.

       PPID∗         Indicate the process ID of the parent proccess for fd which is invoked first.  (UNIX)

       PRECEDEPATH   Specify the file preceding function, which displays only filenames before  obtaining  their
                     file information, for the directory which has a lot of files like as /dev.  You can specify
                     multiple pathnames separating with ':'.  You are enough to specify only the  top  directory
                     where  you want to realize the file preceding function, then the file preceding function is
                     valid in all of the directories under that directory.  When the file preceding function  is
                     effective,  any  files  are  not sorted in that directory, and file information is obtained
                     file by file while waiting the key input.  No pathname is specified by default.

       PRECOPYMENU   Display the menu in advance, which ask you what do you want with the same named  files  and
                     the  restricted  files, when you copy, move, or delete multiple files.  In case of too many
                     target files, it avoids the occurrence of query after waiting  for  a  moment.   Any  value
                     except 0 and null effects valid.

       PROGRESSBAR   Display  the  progress  bar,  which  indicates the progress, when you copy, move, or delete
                     files.  It needs the time to calculate the progress, to make the processing time  a  little
                     longer than no progress bar.  Any value except 0 and null effects valid.

       PS1           Specify  the  prompt  string  of input line in EXECUTE_SH.  The default value is "$ ".  The
                     following escape sequences are available.
                         \u   username (UNIX)
                         \h   hostname (UNIX)
                         \H   hostname (including domain name) (UNIX)
                         \w   fullpath of current directory
                         \~   fullpath of current directory
                              (to simplify home directory with ~)
                         \W   current directory name
                         \!   command history number
                         \$   if UID is 0, a #, otherwise a $ (UNIX)
                         \[   beginning of non-printing sequence
                              (terminal control character etc.)
                         \]   ending of non-printing sequence
                         \e   ESC (\033)
                         \ooo character indicated by the octal ooo
                         \\   \ itself

       PS2           Specify the prompt string when more continuous input is needed in EXECUTE_SH.  The  default
                     value is "> ".

       PS4∗          Specify the prompt string with which command strings are displayed when you do set -x.

       PTYINKCODE    Specify  the Kanji code for the string passed to the pseudo terminal.  The string, which is
                     converted from the Kanji code specified by INPUTKCODE to the Kanji code specified  by  this
                     command,  is  inputted  to any processes running on the pseudo terminal.  This variable has
                     the individual value for each pseudo terminal, so that  you  should  change  value  of  the
                     variable  on  the  pseudo  terminal  to  change the input Kanji code of the pseudo terminal
                     running already.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       PTYMENUKEY    Specify the key to open the  pseudo  terminal  menu  while  you  are  handling  the  pseudo
                     terminal.   You  can  describe  the  same  key  name  as  bind command.  You can select the
                     following items in the pseudo terminal menu: "SendAsIs", "InputCode", "Break", "NextWindow"
                     and  "Kanji".   Each  item  means respectively: sending the pseudo terminal menu key as is,
                     inputting the key name to be sent, terminating forcedly the process running in  the  pseudo
                     terminal,  changing  to  the next window, invoking the Kana-Kanji IME.  In "InputCode", you
                     can use the key name like as bind command, and also the Kanji code number used in the Kana-
                     Kanji  IME  mode.   But  you  cannot select "NextWindow" in the non-split window mode.  The
                     default value is not specified.  (UNIX)

       PTYMODE       Use the pseudo terminal to invoke  external  commands.   In  the  split  window  mode,  the
                     independent  pseudo  terminals  for  every  windows will be opened and enable you to handle
                     simultaneously multiple external commands via terminals.  If the terminal in  use  can  not
                     provide  some  functions  required  for the terminal emulation, the pseudo terminal may not
                     work correctly.  Any value except 0 and null effects valid.  (UNIX)

       PTYOUTKCODE   Specify the Kanji code for the string passed from the pseudo terminal.  The  string,  which
                     is  converted  from the Kanji code specified by this command to the Kanji code specified by
                     LANGUAGE, is displayed from any processes running on the pseudo  terminal.   This  variable
                     has  the  individual value for each pseudo terminal, so that you should change value of the
                     variable on the pseudo terminal to change the output Kanji  code  of  the  pseudo  terminal
                     running already.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       PTYTERM       Specify  the value of TERM the environment variable to be passed to external commands, when
                     you use the pseudo terminal.  Some termcap(5) or terminfo(5) may cause unexpected  behavior
                     of the pseudo terminal, you should specify the effective terminal name in your environment.
                     The default value is vt100.  (UNIX)

       PWD∗          The variable for the current directory with the absolute representation.  If some value  is
                     set, this value will be replaced automatically according to changing the current directory.
                     If no value is set, this value will remain unset.  If this  is  passed  as  an  environment
                     variable when invoked, and this value and the current directory indicate the same directory
                     logically, then it is used as the default value for the current directory.   It  is  useful
                     when you want to specify the logical pathname following symbolic links.

       ROOTLOGLEVEL  Specify  the  priority  for  the  log  contents of the super user.  The default value is 1.
                     (UNIX)
                         0       no log
                         1       only warning such as writing
                         2       notice such as changing, and over
                         3       info. such as refering, and over
                         >= 4    debug level, and over

                     The same operation can result as an error to output the log in  the  lower  priority  by  1
                     level.

       RRPATH        Display  files  under  the  directory mounted by CD-ROM, with the pseudo ISO 9660 RockRidge
                     Extension, for the OS which cannot support RockRidge Extension.  You can  specify  multiple
                     mount points separating with ':'.  You are enough to specify only the top directory mounted
                     by CD-ROM, then the pseudo RockRidge Extension function is valid in all of the  directories
                     under  that  directory.   This  is  no  more  than  a pseudo extension, which only replaces
                     filenames according to TRANS.TBL, and cannot handle some CD-ROM which has  an  inconsistent
                     TRANS.TBL.  No mount point is specified by default.

       SAVEDIRHIST   Specify  the  maximum number saved to the directory history file.  The default value is 50.
                     If this value is 0, no directory history file is saved.

       SAVEHIST      Specify the maximum number saved to the command history file.  The default value is 50.  If
                     this value is 0, no command history file is saved.

       SECOND        Display  the  second  in  the clock of the title line.  But the clock is adjusted correctly
                     every 10 seconds, and some gap from the real time will be occurred in this span.  Any value
                     except 0 and null effects valid.

       SHELL         When  the  filename  part  of  this  specified  value  is rfd or rfdsh, the shell becomes a
                     restricted shell as well as -r option when invoked.  This variable also specify  the  shell
                     which can be invoked from EXECUTE_SH.

       SIZEINFO      Display the file size information line at the top of screen.  The total size displayed here
                     is not the sum of bytes but the sum of disk block size occupied actually.  Any value except
                     0 and null effects valid.

       SIZEUNIT      Represent  the huge file size which overflows the displayed digit with the prefix of the SI
                     unit, as "KB", "MB" and so on.  Any value except 0 and null effects valid.

       SORTTREE      Sort directories in the tree screen.  The sorted type specified by SORT_DIR  is  used,  but
                     they  can  not be sorted when it is "by size" or "by timestamp".  The directory included in
                     the current directory path is always placed on the top of directory tree, with no regard to
                     the sorted type.  Any value except 0 and null effects valid.

       SORTTYPE      The  file  list  in  the  browser  screen  is  not  sorted  by default, but placed in order
                     registered in the directory.  This variable specify  it  to  be  sorted  by  default.   The
                     following are specifiable values.
                         0    not sort
                         1    by filename    9    by filename(reverse)
                         2    by extension   10   by extension(reverse)
                         3    by size        11   by size(reverse)
                         4    by timestamp   12   by timestamp(reverse)
                         5    by length      13   by length(reverse)
                         100-113   keep the last sorted type
                         200-213   keep it also in archive browser

                     If you specify the value of 100-113, it is sorted according to the value indicated by lower
                     2 digits just after invoked, the last specified sorted type is kept when moving  directory.
                     If  you  specify  the value of 200-213, the last sort type will be kept also after invoking
                     the archive browser.

       TERM∗         Specity the terminal name.  When this value is dumb, unknown or un, it is regarded  as  the
                     dumb terminal to suppress any escape sequences in the internal shell in spite of DUMBSHELL.
                     If this value does not exist in termcap(5) and terminfo(5) entry,  it  is  executable  only
                     when  it  is invoked as fdsh.  The terminal name will be variable dynamically, then you can
                     re-specify the suitable one as this value after invoked for some strange  terminal  display
                     and key input.

       THRUARGS      Pass  through the pathnames as is, which is specified as the startup arguments.  Fd expands
                     the meta character such as ~ and ${#} in the given pathname by itself, because the obsolete
                     low-level  shell cannot support these expansion extended by POSIX.  Fd can sometimes expand
                     the pathname given by the shell into  the  unexpected  string  as  a  result  of  duplicate
                     expansion,  because  the  latest  high-level shell generally support these expansion.  This
                     variable will be suppress the expansion of arguments.  Any value except 0 and null  effects
                     valid.

       TMPDIR        Specify  the  working  directory where the archiver command temporarily unpack files in the
                     archive file.  The default value is /tmp.

                     (On MS-DOS version, The default value is `.'.)

       TMPUMASK      Specify the file creation mask with octal expression  for  files  and  directories  created
                     temporarily  in TMPDIR.  But the mask value set by umask the builtin command is prior, then
                     actual mask value is the logical OR of this value and umask value.

       TRADLAYOUT    Use the traditional screen layout based on the original "FD".  In  this  layout,  the  file
                     size information will be always displayed, whether SIZEINFO is set or not.  When the screen
                     width is less than 80 columns, this specification is invalid.  Any value except 0 and  null
                     effects valid.

       UNICODEBUFFER Hold  the  UNICODE translation table on memory.  It will be fast to access the floppy drive
                     and to translate from/to UTF-8.  You should set this if you have enough memory.  Any  value
                     except 0 and null effects valid.

       URLDRIVE      Validate the function of the URL drive.  Any value except 0 and null effects valid.  (UNIX)

       URLKCODE      Specify the Kanji code for filename on the host with the URL drive.  JIS8, JUNET, HEX, CAP,
                     etc. among them are the Kanji codes used in Samba.  (UNIX)
                         SJIS, sjis     Shift JIS
                         EUC, euc       EUC-JP
                         JIS, jis       7bit JIS
                         JIS8, jis8     8bit JIS
                         JUNET, junet   ISO-2022-JP
                         OJIS, ojis     7bit JIS (JIS C6226-1978 + roman)
                         OJIS8, ojis8   8bit JIS (JIS C6226-1978 + roman)
                         OJUNET, ojunet ISO-2022-JP (JIS C6226-1978 + roman)
                         HEX, hex       HEX
                         CAP, cap       CAP
                         UTF8, utf8     UTF-8
                         UTF8-mac, mac  UTF-8 for Mac OS X
                         UTF8-iconv     UTF-8 for iconv
                         default        no convert

       URLOPTIONS    Specify communication options, when the URL drive communicates  with  the  host.   You  can
                     select  individually  whether  if  PASV,  PORT,  MDTM,  FEAT  each  commands  for  the  FTP
                     communication are limited or not, or whether if the exact file information is need or  not.
                     On the HTTP protocol, you will get the timestamp and size of files with some rounding error
                     in bulk.  If you need the exact information, the operations by file  will  spend  the  more
                     communication time.  The default value is 0.  The following are specifiable values.  (UNIX)
                         0    standard
                         1    PASV
                         2            PORT
                         3    PASV &  PORT
                         4                    MDTM
                         5    PASV &          MDTM
                         6            PORT &  MDTM
                         7    PASV &  PORT &  MDTM
                         8                            FEAT
                         9    PASV &                  FEAT
                         10           PORT &          FEAT
                         11   PASV &  PORT &          FEAT
                         12                   MDTM &  FEAT
                         13   PASV &          MDTM &  FEAT
                         14           PORT &  MDTM &  FEAT
                         15   PASV &  PORT &  MDTM &  FEAT
                         16                                   HTTP
                         17   PASV &                          HTTP
                         18           PORT &                  HTTP
                         19   PASV &  PORT &                  HTTP
                         20                   MDTM &          HTTP
                         21   PASV &          MDTM &          HTTP
                         22           PORT &  MDTM &          HTTP
                         23   PASV &  PORT &  MDTM &          HTTP
                         24                           FEAT &  HTTP
                         25   PASV &                  FEAT &  HTTP
                         26           PORT &          FEAT &  HTTP
                         27   PASV &  PORT &          FEAT &  HTTP
                         28                   MDTM &  FEAT &  HTTP
                         29   PASV &          MDTM &  FEAT &  HTTP
                         30           PORT &  MDTM &  FEAT &  HTTP
                         31   PASV &  PORT &  MDTM &  FEAT &  HTTP

       URLTIMEOUT    Specify  the  timeout  in  seconds,  when the URL drive communicates with the host.  If the
                     communication from the host is lost for the time specified, the communication  is  regarded
                     as  invalid  and  its connection will be shutdown forcedly.  If this value is 0 second, the
                     timeout operation is invalid to continue waiting response forever.  The default value is  0
                     second.  (UNIX)

       USEGETCURSOR  Use  the  VT100  compatible escape sequence getting the cursor position in order to get the
                     terminal size.  When the screen size of fd doesn't correspond with the terminal size,  this
                     variable can be sometimes valid.  On some terminals which don't support the escape sequence
                     getting the cursor position, the operation may be stopped.  In this case, it  is  continued
                     by inputting 'R' from the keyboard.  Any value except 0 and null effects valid.  (UNIX)

       USESYSLOG     Send  the  log  to  syslogd(8)  the  system  logger with the level spacified by LOGLEVEL or
                     ROOTLOGLEVEL.  The log priority is LOG_ERR only some errors are caused, otherwise  the  log
                     priority is always LOG_INFO.  LOG_USER is used as the facirity if it can be specified.  Any
                     value except 0 and null effects valid.  (UNIX)

       WIDEDIGIT     Widen the displayed digits for the number of  pages  and  files.   The  standard  displayed
                     digits  for the number of pages and files are 2 and 4 respectively.  This expands them into
                     4 and 5 respectively.  Any value except 0 and null effects valid.

       WRITEFS       Forbid use of WRITE_DIR command.  If the value is 1, the directory is written only when the
                     command  is  executed  intentionally,  and  you  are not confirmed after arranging the file
                     order.  If the value is 2, even writing by the command is invalid, the directory writing is
                     quite forbidden.

       SJISPATH
       EUCPATH
       JISPATH
       JIS8PATH
       JUNETPATH
       OJISPATH
       OJIS8PATH
       OJUNETPATH
       HEXPATH
       CAPPATH
       UTF8PATH
       UTF8MACPATH
       UTF8ICONVPATH
       NOCONVPATH    Specify  the  Kanji code for filename per directory, which is prior to FNAMEKCODE.  You can
                     specify multiple pathnames separating with ':'.  You are enough to  specify  only  the  top
                     directory  where  you want to use the Kanji code, then you can use the Kanji code in all of
                     the directories under that directory.  In the directory which is described  in  NOCONVPATH,
                     no  Kanji  code is converted ignoring the value of FNAMEKCODE.  No pathname is specified by
                     default.  (UNIX)

MULTI LANGUAGE SUPPORT

       Fd processes the Kanji character-set to input/output as "EUC-JP" or "Shift JIS" according to  setting  in
       compile.   The  the  pathname including Kanji is displayed in consideration for the 2nd byte character in
       Kanji.  You can dynamically select Kanji code to input/output with LANGUAGE,  INPUTKCODE  and  FNAMEKCODE
       the internal variable.  You can input Japanese string with the Kana-Kanji IME mode.

       You  can  use Kanji in the command macro and the command string, but cannot use Kanji as the value of the
       internal variables.  You cannot use the multibyte symbol character as the meta character, such as '%' and
       '"' and so on, Kanji character is not counted as 1 character in the wildcard search.

       And  when  you  give the non-standard Kanji code for the OS to the shell with the parameter macro such as
       %JJ, some Kanji is converted into the code including the meta character such as '$' and '\' and so on, to
       cause unexpected behavior.  In that case, you can probably avoid it by quoting the string to be converted
       with %'.

AUTHOR

       Takashi SHIRAI <shirai@unixusers.net>
       The original "FD" for MS-DOS was created and released by A.Idei <SDI00544@niftyserve.or.jp> for the first
       time, in 1989.  Fd was created for UNIX from scratch following that implementation, in 1995.

FILES

       /etc/fd2rc
                 The systemwide initial configuration file for fd
       ~/.fd2rc  The individual initial configuration file for fd
       ~/.fdshrc The individual initial configuration file for fdsh
       ~/.fd_history
                 The command history file by default
       ~/.fd_freq
                 The translation frequency file by default for the users Kana-Kanji translation learning
       /bin/sh   The user shell when SHELL the environment variable is undefined
       /bin/rm   The command to remove temporary files when abort
       /tmp/fd∗  The temporary directory to unpack the archive file
       fd-unicd.tbl
                 The  UNICODE  translation  table,  which  is  installed in the same directory as the executable
                 binary of fd
       fd-dict.tbl
                 The Kana-Kanji translation dictionary file, which is installed in the  same  directory  as  the
                 executable binary of fd

       fd2rc     The  systemwide  initial configuration file for fd on MS-DOS version, which must be prepared in
                 the same directory as the executable binary of fd
       $HOME\fd2.rc
                 The individual initial configuration file for fd on MS-DOS version
       $HOME\fdsh.rc
                 The individual initial configuration file for fdsh on MS-DOS version
       $HOME\fd.hst
                 The command history file on MS-DOS version by default

LIMITATIONS

       Some terminals cannot send the input of certain function keys and special keys.  The sequence  compatible
       with  VT200  is  assigned  as  the  default  sequence which is not registered in termcap(5), and when the
       terminal cannot support this, the key receipt or the screen control due to be  brought  by  this  is  not
       available.

SEE ALSO

       sh(1),  echo(1),  test(1),  ls(1),  rm(1),  tar(1),  compress(1),  zcat(1),  gzip(1),  gunzip(1), lha(1),
       login(1), newgrp(1), stty(1), umask(2), termcap(5), terminfo(5), syslogd(8)

BUGS

       When files in an archive file are packed with a pathname including "..", the archive browser cannot  work
       normally.  The symbolic links in an archive file cannot be unpacked individually.

       The user interface is cheap.

       Copyright (C) 1995-2014 by Takashi SHIRAI

                                                   May 6, 2014                                             FD(1)