From RootdevWiki
A Neat PS/Grep Trick
Tired of having to continually type:
ps -ef |grep foo | grep -v grep
?
Try putting square brackets round the first character of your grep string like so:
ps -ef |grep [f]oo
And it will no longer search for itself. Neat huh?
Colour Output
$ grep --color perl arg.pl #!/usr/bin/perl
Search for more than one string (either or):
grep "foo\|bar" filename
