GNU Ed 1.10 Copyright (C) 1994 Andrew L. Moore. Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 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.

GNU Ed - The GNU line editor. Usage: ed [options] [file] Options: -h, --help display this help and exit -V, --version output version information and exit -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 -r, --restricted run in restricted mode -s, --quiet, --silent suppress diagnostics -v, --verbose be verbose 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 (file not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency error (eg, bug) which caused ed to panic. Report bugs to bug-ed@gnu.org Ed home page: http://www.gnu.org/software/ed/ed.html General help using GNU software: http://www.gnu.org/gethelp