fai-sed - call sed on a file but check for changes before writing
fai-sed CMD FILE
Execute a sed command, CMD, on FILE but do not overwrite the file if nothing changes. If $target is defined, use it as prefix for the path to FILE.
The exit code is 0 if no changes were done, 1 if the file was changed and exit codes greater 1 indicate errors.
$ fai-sed ’s/foo/bar/g’ /etc/motd
Replace foo with bar in file /etc/motd.
$ fai-sed ’s/123/ABC/g; /XXX/d’ /etc/motd
Replace 123 with ABC and delete all lines which contain the string XXX.
This program is part of FAI (Fully Automatic Installation). See the FAI manual for more information on how to use fai-monitor. The FAI homepage is https://fai-project.org.
Thomas Lange <firstname.lastname@example.org>