Provided by: nano_6.4-1_amd64 bug


       nano - Nano's ANOther editor, inspired by Pico


       nano [options] [[+line[,column]] file]...

       nano [options] [[+[crCR](/|?)string] file]...


       nano  is  a  small  and friendly editor.  It copies the look and feel of Pico, but is free
       software, and implements several features that  Pico  lacks,  such  as:  opening  multiple
       files,  scrolling  per line, undo/redo, syntax coloring, line numbering, and soft-wrapping
       overlong lines.

       When giving a filename on the command line, the cursor can be put on a  specific  line  by
       adding  the  line  number with a plus sign (+) before the filename, and even in a specific
       column by adding it with a comma.  (Negative numbers count from the end  of  the  file  or
       line.)   The  cursor  can  be  put on the first or last occurrence of a specific string by
       specifying that string after +/ or +? before the filename.  The string can  be  made  case
       sensitive  and/or caused to be interpreted as a regular expression by inserting c and/or r
       after the + sign.  These search modes can be explicitly disabled by  using  the  uppercase
       variant  of  those  letters:  C and/or R.  When the string contains spaces, it needs to be
       enclosed in quotes.  To give an example: to open a file at the  first  occurrence  of  the
       word "Foo", you would do:

           nano +c/Foo file

       As  a special case: if instead of a filename a dash (-) is given, nano will read data from
       standard input.


       Entering text and moving around in a file is straightforward: typing the letters and using
       the  normal  cursor  movement keys.  Commands are entered by using the Control (^) and the
       Alt or Meta (M-) keys.  Typing ^K deletes the current line and puts it in  the  cutbuffer.
       Consecutive ^Ks will put all deleted lines together in the cutbuffer.  Any cursor movement
       or executing any other command will cause the next ^K to overwrite the  cutbuffer.   A  ^U
       will paste the current contents of the cutbuffer at the current cursor position.

       When  a  more precise piece of text needs to be cut or copied, you can mark its start with
       ^6, move the cursor to its end (the marked text will be highlighted), and then use  ^K  to
       cut  it,  or M-6 to copy it to the cutbuffer.  You can also save the marked text to a file
       with ^O, or spell check it with ^T^T.

       On some terminals, text can be selected also by holding down Shift while using  the  arrow
       keys.  Holding down the Ctrl or Alt key too will increase the stride.  Any cursor movement
       without Shift being held will cancel such a selection.

       The two lines at the bottom of the screen show some important commands; the built-in  help
       (^G)  lists  all the available ones.  The default key bindings can be changed via a nanorc
       file -- see nanorc(5).


       -A, --smarthome
              Make the Home key smarter.  When Home is pressed anywhere but at the very beginning
              of  non-whitespace  characters  on  a  line, the cursor will jump to that beginning
              (either forwards or backwards).  If the cursor is already at that position, it will
              jump to the true beginning of the line.

       -B, --backup
              When  saving a file, back up the previous version of it, using the current filename
              suffixed with a tilde (~).

       -C directory, --backupdir=directory
              Make and keep not just one backup file, but make and keep a uniquely  numbered  one
              every time a file is saved -- when backups are enabled (-B).  The uniquely numbered
              files are stored in the specified directory.

       -D, --boldtext
              For the interface, use bold instead of reverse video.  This will be  overridden  by
              setting  the options titlecolor, statuscolor, keycolor, functioncolor, numbercolor,
              and/or selectedcolor in your nanorc file.  See nanorc(5).

       -E, --tabstospaces
              Convert each typed tab to spaces -- to the number of spaces  that  a  tab  at  that
              position would take up.

       -F, --multibuffer
              Read a file into a new buffer by default.

       -G, --locking
              Use vim-style file locking when editing files.

       -H, --historylog
              Save the last hundred search strings and replacement strings and executed commands,
              so they can be easily reused in later sessions.

       -I, --ignorercfiles
              Don't look at the system's nanorc nor at the user's nanorc.

       -J number, --guidestripe=number
              Draw a vertical stripe at the given column, to help judge the width  of  the  text.
              (The color of the stripe can be changed with set stripecolor in your nanorc file.)

       -K, --rawsequences
              Interpret  escape  sequences directly, instead of asking ncurses to translate them.
              (If you need this option to get some keys to  work  properly,  it  means  that  the
              terminfo terminal description that is used does not fully match the actual behavior
              of your terminal.  This can happen when you ssh into a BSD machine,  for  example.)
              Using this option disables nano's mouse support.

       -L, --nonewlines
              Don't  automatically  add  a  newline when a text does not end with one.  (This can
              cause you to save non-POSIX text files.)

       -M, --trimblanks
              Snip trailing whitespace from the wrapped line when automatic hard-wrapping  occurs
              or when text is justified.

       -N, --noconvert
              Disable automatic conversion of files from DOS/Mac format.

       -O, --bookstyle
              When  justifying,  treat any line that starts with whitespace as the beginning of a
              paragraph (unless auto-indenting is on).

       -P, --positionlog
              For the 200 most recent files, log the last position of the cursor, and place it at
              that position again upon reopening such a file.

       -Q "regex", --quotestr="regex"
              Set  the  regular  expression for matching the quoting part of a line.  The default
              value is "^([ \t]*([!#%:;>|}]|//))+".  (Note that \t stands  for  an  actual  Tab.)
              This makes it possible to rejustify blocks of quoted text when composing email, and
              to rewrap blocks of line comments when writing source code.

       -R, --restricted
              Restricted mode: don't read or write to any file not specified on the command line.
              This  means: don't read or write history files; don't allow suspending; don't allow
              spell checking; don't allow a file to be appended to, prepended to, or saved  under
              a  different  name  if it already has one; and don't make backup files.  Restricted
              mode can also be activated by invoking nano with any name beginning with 'r'  (e.g.

       -S, --softwrap
              Display  over  multiple screen rows lines that exceed the screen's width.  (You can
              make this soft-wrapping occur at whitespace instead of rudely at the screen's edge,
              by using also --atblanks.)  (The old short option, -$, is deprecated.)

       -T number, --tabsize=number
              Set  the  size  (width)  of  a  tab to number columns.  The value of number must be
              greater than 0.  The default value is 8.

       -U, --quickblank
              Make status-bar messages disappear after 1 keystroke instead  of  after  20.   Note
              that option -c (--constantshow) overrides this.  When option --minibar or --zero is
              in effect, --quickblank makes a message disappear  after  0.8  seconds  instead  of
              after the default 1.5 seconds.

       -V, --version
              Show the current version number and exit.

       -W, --wordbounds
              Detect  word boundaries differently by treating punctuation characters as part of a

       -X "characters", --wordchars="characters"
              Specify which other characters (besides the normal  alphanumeric  ones)  should  be
              considered as part of a word.  When using this option, you probably want to omit -W

       -Y name, --syntax=name
              Specify the name of the syntax highlighting to use from among the ones  defined  in
              the nanorc files.

       -Z, --zap
              Let  an unmodified Backspace or Delete erase the marked region (instead of a single
              character, and without affecting the cutbuffer).

       -a, --atblanks
              When doing soft line wrapping, wrap lines at whitespace instead of  always  at  the
              edge of the screen.

       -b, --breaklonglines
              Automatically hard-wrap the current line when it becomes overlong.  (This option is
              the opposite of -w (--nowrap) -- the last one given takes effect.)

       -c, --constantshow
              Constantly show the cursor position on the status bar.  Note  that  this  overrides
              option -U (--quickblank).

       -d, --rebinddelete
              Interpret  the  Delete  and  Backspace  keys differently so that both Backspace and
              Delete work properly.  You should only use this option when on your  system  either
              Backspace acts like Delete or Delete acts like Backspace.

       -e, --emptyline
              Do not use the line below the title bar, leaving it entirely blank.

       -f file, --rcfile=file
              Read only this file for setting nano's options, instead of reading both the system-
              wide and the user's nanorc files.

       -g, --showcursor
              Make the cursor visible in the file browser (putting it on  the  highlighted  item)
              and in the help viewer.  Useful for braille users and people with poor vision.

       -h, --help
              Show a summary of the available command-line options and exit.

       -i, --autoindent
              Automatically  indent a newly created line to the same number of tabs and/or spaces
              as the previous line (or as the next line if the previous line is the beginning  of
              a paragraph).

       -j, --jumpyscrolling
              Scroll the buffer contents per half-screen instead of per line.

       -k, --cutfromcursor
              Make  the  'Cut Text' command (normally ^K) cut from the current cursor position to
              the end of the line, instead of cutting the entire line.

       -l, --linenumbers
              Display line numbers to the left of the  text  area.   (Any  line  with  an  anchor
              additionally gets a mark in the margin.)

       -m, --mouse
              Enable mouse support, if available for your system.  When enabled, mouse clicks can
              be used to place the cursor, set the  mark  (with  a  double  click),  and  execute
              shortcuts.  The mouse will work in the X Window System, and on the console when gpm
              is running.  Text can still be selected through dragging by holding down the  Shift

       -n, --noread
              Treat  any name given on the command line as a new file.  This allows nano to write
              to named pipes: it will start with a blank buffer, and will write to the pipe  when
              the  user  saves the "file".  This way nano can be used as an editor in combination
              with for instance gpg without having to write sensitive data to disk first.

       -o directory, --operatingdir=directory
              Set the operating directory.  This makes nano set up something similar to a chroot.

       -p, --preserve
              Preserve the XON and XOFF sequences (^Q and ^S) so  they  will  be  caught  by  the

       -q, --indicator
              Display  a  "scrollbar"  on  the  righthand  side of the edit window.  It shows the
              position of the viewport in the buffer and how much of the buffer is covered by the

       -r number, --fill=number
              Set  the  target width for justifying and automatic hard-wrapping at this number of
              columns.  If the value is 0 or less, wrapping will occur at the width of the screen
              minus  number  columns, allowing the wrap point to vary along with the width of the
              screen if the screen is resized.  The default value is -8.

       -s "program [argument ...]", --speller="program [argument ...]"
              Use this command to perform spell checking and correcting,  instead  of  using  the
              built-in corrector that calls hunspell(1) or spell(1).

       -t, --saveonexit
              Save a changed buffer without prompting (when exiting with ^X).

       -u, --unix
              Save  a  file by default in Unix format.  This overrides nano's default behavior of
              saving a file in the format that it had.  (This option has no effect when you  also
              use --noconvert.)

       -v, --view
              Just view the file and disallow editing: read-only mode.  This mode allows the user
              to open also other files for viewing, unless --restricted is given too.

       -w, --nowrap
              Do not automatically hard-wrap the current line when it becomes overlong.  This  is
              the default.  (This option is the opposite of -b (--breaklonglines) -- the last one
              given takes effect.)

       -x, --nohelp
              Don't show the two help lines at the bottom of the screen.

       -y, --afterends
              Make Ctrl+Right and Ctrl+Delete stop at word ends instead of beginnings.

       -%, --stateflags
              Use the top-right corner of the screen for showing some state flags: I  when  auto-
              indenting,  M  when  the  mark is on, L when hard-wrapping (breaking long lines), R
              when recording a macro, and S when soft-wrapping.  When the buffer is  modified,  a
              star (*) is shown after the filename in the center of the title bar.

       -_, --minibar
              Suppress the title bar and instead show information about the current buffer at the
              bottom of the screen, in the space for the  status  bar.   In  this  "minibar"  the
              filename  is  shown  on  the  left,  followed by an asterisk if the buffer has been
              modified.  On the right are displayed the current line and column number, the  code
              of  the  character  under the cursor (in Unicode format: U+xxxx), the same flags as
              are shown by --stateflags, and a percentage that expresses how far  the  cursor  is
              into  the file (linewise).  When a file is loaded or saved, and also when switching
              between buffers, the number of lines in the buffer is displayed after the filename.
              This  number  is cleared upon the next keystroke, or replaced with an [i/n] counter
              when multiple buffers are open.  The line plus column  numbers  and  the  character
              code  are displayed only when --constantshow is used, and can be toggled on and off
              with M-C.  The state flags are displayed only when --stateflags is used.

       -0, --zero
              Hide all elements of the interface (title bar, status bar, and help lines) and  use
              all  rows  of  the terminal for showing the contents of the buffer.  The status bar
              appears only when there is a significant message, and disappears after 1.5  seconds
              or upon the next keystroke.  With M-Z the title bar plus status bar can be toggled.
              With M-X the help lines.

       -!, --magic
              When neither the file's name nor its first line give a clue, try using libmagic  to
              determine the applicable syntax.


       Several  of  the above options can be switched on and off also while nano is running.  For
       example, M-L toggles the hard-wrapping of  long  lines,  M-S  toggles  soft-wrapping,  M-N
       toggles line numbers, M-M toggles the mouse, M-I auto-indentation, and M-X the help lines.
       See at the end of the ^G help text for a complete list.

       The M-X toggle is special: it works in all menus except the help viewer  and  the  linter.
       All other toggles work in the main menu only.


       When --rcfile is given, nano will read just the specified file for setting its options and
       syntaxes and key bindings.  Without that option, nano will read two  configuration  files:
       first  the  system's  nanorc  (if  it  exists), and then the user's nanorc (if it exists),
       either ~/.nanorc or $XDG_CONFIG_HOME/nano/nanorc or  ~/.config/nano/nanorc,  whichever  is
       encountered  first.   See nanorc(5) for more information on the possible contents of those

       See /usr/share/nano/ and /usr/share/nano/extra/ for available syntax-coloring definitions.


       Option -z (--suspendable) has been removed.  Suspension is enabled by  default,  reachable
       via  ^T^Z.   (If  you  want  a  plain ^Z to suspend nano, add bind ^Z suspend main to your

       If no alternative spell checker command is specified on the command line nor in one of the
       nanorc files, nano will check the SPELL environment variable for one.

       In  some  cases nano will try to dump the buffer into an emergency file.  This will happen
       mainly if nano receives a SIGHUP or SIGTERM or runs out of  memory.   It  will  write  the
       buffer into a file named if the buffer didn't have a name already, or will add a
       ".save" suffix to the current filename.  If an  emergency  file  with  that  name  already
       exists in the current directory, it will add ".save" plus a number (e.g. ".save.1") to the
       current filename in order to make it unique.  In multibuffer mode, nano will write all the
       open buffers to their respective emergency files.


       The recording and playback of keyboard macros works correctly only on a terminal emulator,
       not on a Linux console (VT), because the latter does not by default  distinguish  modified
       from unmodified arrow keys.

       Please report any other bugs that you encounter via:

       When nano crashes, it will save any modified buffers to emergency .save files.  If you are
       able to reproduce the crash and you want  to  get  a  backtrace,  define  the  environment
       variable NANO_NOCATCH.




       /usr/share/doc/nano/ (or equivalent on your system)