COMM(C)                  XENIX System V                   COMM(C)



     Name
          comm - Selects or rejects lines common to two sorted files.

     Syntax
          comm [ - [ 123 ] ] file1 file2

     Description
          comm reads file1 and file2, which should be ordered in ASCII
          collating sequence (see sort(C)), 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(C), diff(C), sort(C), uniq(C)



































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