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Asked: 2026-06-09T03:12:40+00:00

I am writing a bash script, and I would like to know which files

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I am writing a bash script, and I would like to know which files are the same in two directory trees.

It would be the opposite of using diff.

Well i found the answer myself. I had tried it before, but I thought it did not work.

diff -srq dir1/ dir2/ | grep identical
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  1. Editorial Team

    Well i found the answer myself. I had tried it before, but I thought it did not work.

    diff -srq dir1/ dir2/ | grep identical

    What -srq means? From diff –help :

    -s  --report-identical-files  Report when two files are the same.
-r  --recursive  Recursively compare any subdirectories found.
-q  --brief  Output only whether files differ.
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