CODEWITHSUNDEEP
bashshellunixawkgrep
Dougnukem
Dougnukem

Reputation: 14907

unix match multiple patterns return success

Is there an easy way to search a file for multiple patterns and return success only if both patterns are found.

For example if I had a file:

itemA
itemB
itemC
itemD

I want to print the name of all txt files that have both "itemA" and "itemD"

something like:

find . -name "*.txt" | xargs -n 1 -I {} sh -c "grep 'itemA AND itemB' && echo {}"

Upvotes: 1

Views: 86

Answers (3)

devnull
devnull

Reputation: 123458

Translating your pseudo-code into real:

find . -name "*.txt" | xargs -n 1 -I {} sh -c "grep -q itemA {} && grep -q itemD {} && echo {}"

You could shorten this somewhat by making the second grep print the filename:

find . -name "*.txt" | xargs -n 1 -I {} sh -c "grep -q itemA {} && grep -l itemD {}"

Upvotes: 1

Ed Morton
Ed Morton

Reputation: 203254

awk '/ItemA/{f1=1} /ItemB/{f2=1} END{ exit (f1 && f2 ? 0 : 1) }' file

Upvotes: 3

John Kugelman
John Kugelman

Reputation: 361585

find . -name "*.txt" -exec grep -l 'itemA' {} + | xargs grep -l 'itemB'

Add -Z to grep and -0 to xargs if you want to be extra careful with special characters.

Upvotes: 3

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