comm man page on Ultrix

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comm(1)								       comm(1)

Name
       comm - compare sorted data

Syntax
       comm [-[123]] file1 file2

Description
       The  command  reads  file1  and file2, which should be ordered in ASCII
       collating sequence, and produces a three column output: lines  only  in
       file1; lines only in file2; and lines in both files.  The file name `-'
       means the standard input.

Options
       1  Suppresses column one: lines in file1 only.

       2  Suppresses column two: lines in file2 only.

       3  Suppresses column three: lines in file1 and file2.

       Thus -12 prints only the lines common to the two files.	And -23 prints
       only  lines  in the first file but not in the second.  Finally, -123 is
       not an option.

See Also
       cmp(1), diff(1), diff3(1), diffmk(1), join(1), uniq(1)

								       comm(1)
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