find lines that matches on 2 different sorted file
Supposed we have 2 sorted files:
file1
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file2
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comm is a utility for finding lines that appear (or not) between 2 files. The normal output are 3 column. - 1.Lines that is unique on file 1
- 2.Lines that is unique on file 2
- 3.Lines that are appear on both
$ comm file1 file2
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$ comm -12 file1 file2
3
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5
-12 supresses (do not include) colunm 1 & 2$ comm -23 file1 file2
1
2
If file is not sorted, you can use the
<(..) operator$ comm <(sort -u file1) <(sort -u file2)
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Last modified 9mo ago