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I want to output all the lines in my source code which contain the string foo but don't contain the string bar. I tried this:

find . -name "*.[hc]pp" | xargs grep -n foo | grep -x bar 

However this doesn't work as I expected. How can I use grep in this way?

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up vote 3 down vote accepted

You want the -v flag, not the -x flag.

Mnemonic: negative.

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that did it - tyvm! lmao: I had the wrong mnemonic: eXclude – kfmfe04 Dec 2 '11 at 7:08

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