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Just a related trick
Authored by: tom_b on Jun 30, '07 02:33:53PM
ps -axwwo command | grep [l]ame > ~/Desktop/lame_command.txt

As the brackets are controlled by the shell you won't need to filter by the previous grep.

The brackets in the pattern '[l]ame' are not controlled by the shell, instead they're passed to grep which expects a list of characters between the brackets any of which will match (in this case just 'l').

It still achieves the same effect because as a pattern '[l]ame' will match the string 'lame' but not the string '[l]ame'.

That's probably more confusing than helpful - sorry! It is a neat trick.



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