sed [-n][-e] `command' file(s)
sed [-n] -f scriptfile file(s)
The first form allows you to specify an editing command on the command
line, surrounded by single quotes. The second form allows you to
specify a scriptfile, a file containing sed
commands. Both forms may be used together, and they may be used
multiple times. The resulting editing script is the concatenation of
the commands and script files.
The following options are recognized:
- -n
- Only print lines specified with the p command or
the p flag of the s command.
- -e cmd
- Next argument is an editing command. Useful if multiple scripts are
specified.
- -f file
- Next argument is a file containing editing commands.
If the first line of the script is "#n", sed behaves as if
-n had been specified.