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- NAME
- comm - select or reject lines common to two sorted files
-
- SYNTAX
- comm [ - [ 123 ] ] file1 file2
-
- DESCRIPTION
- Comm reads file1 and file2, which should be sorted, and produces
- a three column output: lines only in file1; lines only in file2;
- and lines in both files. The filename '-' means the standard input.
-
- Flags 1, 2, or 3 suppress printing of the corresponding
- column. Thus comm -12 prints only the lines common to the
- two files; comm -23 prints only lines in the first file but
- not in the second; comm -123 is a no-op.
-
- SEE ALSO
- cmp, uniq