Provided by: nano_4.8-1ubuntu1_amd64 bug

NAME

       nano - Nano's ANOther editor, inspired by Pico

SYNOPSIS

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

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

NOTICE

       Since version 4.0, nano by default:

           · does not automatically hard-wrap lines that become overlong,
           · includes the line below the title bar in the editing area,
           · does linewise (smooth) scrolling.

       If  you  want  the old, Pico behavior back, you can use --breaklonglines, --emptyline, and
       --jumpyscrolling (or -bej for short).

DESCRIPTION

       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", one 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.

EDITING

       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, one 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.  One can also save the marked text to  a  file
       with ^O, or spell check it with ^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).

OPTIONS

       -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 typed tabs to spaces.

       -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 your keyboard to work properly, please report a bug.
              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, --morespace
              Obsolete  and  ignored  option, since the line below the title bar is included into
              the editing space by default.  If you prefer to keep this line  blank,  use  -e  or
              --emptyline.

       -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.
              "rnano").

       -S, --smooth
              Obsolete and ignored option, since smooth scrolling has become the default.  If you
              prefer the chunk-by-chunk scrolling behavior, use -j or --jumpyscrolling.

       -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
              Do quick status-bar blanking: status-bar messages will disappear after 1  keystroke
              instead of 25.  Note that option -c (--constantshow) overrides this.

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

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

       -X "characters", --wordchars="characters"
              Specify which other characters (besides the normal  alphanumeric  ones)  should  be
              considered as part of a word.  This overrides option -W (--wordbounds).

       -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.

       -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
              key.

       -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
              terminal.

       -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 or GNU spell.

       -t, --tempfile
              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 stop at word ends instead of beginnings.

       -z, --suspend
              Enable the suspend ability.

       -$, --softwrap
              Enable 'soft wrapping'.  This will make nano attempt to display the entire contents
              of  any  line,  even  if  it is longer than the screen width, by continuing it over
              multiple screen lines.  Since '$' normally refers to a variable in the Unix  shell,
              you  should specify this option last when using other options (e.g. 'nano -wS$') or
              pass it separately (e.g. 'nano -wS -$').

TOGGLES

       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.

FILES

       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
       files.

NOTES

       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 nano.save 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.

BUGS

       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:
       https://savannah.gnu.org/bugs/?group=nano.

       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.

HOMEPAGE

       https://nano-editor.org/

SEE ALSO

       nanorc(5)

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