man > red(1)

ED(1)                                       User Commands                                      ED(1)

NAME
       ed - line-oriented text editor

SYNOPSIS
       ed [options] [[+line] file]

DESCRIPTION
       GNU  ed  is  a line-oriented text editor. It is used to create, display, modify and otherwise
       manipulate text files, both interactively and via shell scripts. A restricted version of  ed,
       red,  can  only  edit files in the current directory and cannot execute shell commands. Ed is
       the 'standard' text editor in the sense that it is the original editor  for  Unix,  and  thus
       widely available. For most purposes, however, it is superseded by full-screen editors such as
       GNU Emacs or GNU Moe.

       The  file  name  may be preceded by '+line', '+/RE', or '+?RE' to set the current line to the
       line number specified or to the first or last line matching the regular expression 'RE'.

OPTIONS
       -h, --help
              display this help and exit

       -V, --version
              output version information and exit

       -E, --extended-regexp
              use extended regular expressions

       -G, --traditional
              run in compatibility mode

       -l, --loose-exit-status
              exit with 0 status even if a command fails

       -p, --prompt=STRING
              use STRING as an interactive prompt

       -q, --quiet, --silent
              suppress diagnostics written to stderr

       -r, --restricted
              run in restricted mode

       -s, --script
              suppress byte counts and '!' prompt

       -v, --verbose
              be verbose; equivalent to the 'H' command

       --strip-trailing-cr
              strip carriage returns at end of text lines

       --unsafe-names
              allow control characters 1-31 in file names

       Start edit by reading in 'file' if given.  If 'file' begins with a '!', read output of  shell
       command.

       Exit status: 0 for a normal exit, 1 for environmental problems (invalid command-line options,
       memory  exhausted,  command failed, etc), 2 for problems with the input file (file not found,
       buffer modified, I/O errors), 3 for an internal consistency error (e.g., bug) which caused ed
       to panic.

REPORTING BUGS
       Report bugs to bug-ed AT gnu.org
       Ed home page: http://www.gnu.org/software/ed/ed.html
       General help using GNU software: http://www.gnu.org/gethelp

COPYRIGHT
       Copyright © 1994 Andrew L. Moore.
       Copyright  ©  2024  Antonio  Diaz  Diaz.   License  GPLv2+:  GNU  GPL  version  2  or   later
       <http://gnu.org/licenses/gpl.html>
       This  is free software: you are free to change and redistribute it.  There is NO WARRANTY, to
       the extent permitted by law.

SEE ALSO
       The full documentation for ed is maintained as a Texinfo manual.  If the info and ed programs
       are properly installed at your site, the command

              info ed

       should give you access to the complete manual.

GNU ed 1.20.1                               February 2024                                      ED(1)