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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Do an OR search using grep to look for more than one search term

Terminal - Do an OR search using grep to look for more than one search term
grep -i '<searchTerm>\|<someOtherSearchTerm>' <someFileName>
2009-05-11 23:05:54
User: scifisamurai
Functions: grep
Do an OR search using grep to look for more than one search term

This is a simple but useful command to search for multiple terms in a file at once. This prevents you from having to do mutliple grep's of the same file.


There are 10 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

If you can do better, submit your command here.

What others think

This command is wrong. Most unixes do not have 'extended regular expression' operators (which include OR) on regular grep, only on extended grep (egrep) where this operator can not be quoted (preceded by a \). So, while in Linux this works, on AIX for example it does not.

The correct, portable way to do it would be:

egrep 'expression1|expression2' filename
Comment by Patola 466 weeks and 5 days ago

definitely, use "egrep"

Comment by michauko 466 weeks and 4 days ago


grep -i -e "term1" -e "term2"
Comment by flatcap 466 weeks and 4 days ago

Thanks Patola!

Does this work on the commandlinefu grep box ? :)

Comment by DaveQB 466 weeks and 4 days ago

Your point of view

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