Re: desired diff feature: show common lines

[email protected] (Karl Berry)
Newsgroups gmane.comp.gnu.utils
Message-ID <[email protected]> 
    > I would sometimes like see the common lines of two files only. I haven't 

As long as there is any difference at all, I think you could use, say.
diff -C 9999999 file1 file2
and then filter out the changed lines with grep -v [\!+-] or whatever.

Of course, if the files are sorted, comm is better.

Best,
karl
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