comm(1)     UNIX System V(Directory and File Management Utilities)      comm(1)


NAME
      comm - select or reject lines common to two sorted files

SYNOPSIS
      comm [ - [ 123 ] ] file1 file2

DESCRIPTION
      comm reads file1 and file2, which should be ordered in ASCII collating
      sequence [see sort(1)], 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.

      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 prints
      nothing.

SEE ALSO
      cmp(1), diff(1), sort(1), uniq(1).



































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