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Comments on grep AND search for multiple words in files

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grep AND search for multiple words in files

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I have text (xml actually) files. Some files contain 'foo', some contain 'bar', some contain neither and some contain both. It's the both I'm interested in.

How do I do an AND search on words in files in folders (recursively) with grep? I'm using git bash in windows, so either a cygwin or win10 solution works.

I had thought pipeing to grep would work as it seems to be the solution for multiple text on a line, but I don't think I've changed it to work for files correctly.

This is what I tried:

$ grep -rnw . -e 'foo' | grep -e 'bar'

Can someone tell me how to fix my grep call?

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An alternative to grep is Awk, which makes this pretty easy.

To find lines which contain both:

find . -type f -exec awk '/foo/ && /bar/' {} +

(Maybe add { print FILENAME ":" FNR ":" $0 } before the closing quote if you want the filename and the line number.)

To find files which contain both;

find . -type f -exec awk 'FNR==1 { foo=0; bar=0 }
  foo && bar { print FILENAME; nextfile }
  /foo/ { ++foo }
  /bar/ { ++bar }' {} +
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1 comment thread

I think the "find _files_ which contain both" is the relevant part here, in particular since in case ... (2 comments)
I think the "find _files_ which contain both" is the relevant part here, in particular since in case ...
AdminBee‭ wrote over 1 year ago · edited over 1 year ago

I would assume the "find files which contain both" is the relevant part here, in particular since in case of structured files, it is not guaranteed that the elements (OP unfortunately doesn't give concrete examples) are on the same line ...

tripleee‭ wrote over 1 year ago

The question is slightly unclear. The OP seems to want to find files where the matches can be on separate lines, but the grep example in the question would only find occurrences on the same line.