cmp(1)                     DG/UX 4.30                      cmp(1)



     NAME
          cmp - compare two files

     SYNOPSIS
          cmp [ -l ] [ -s ] file1 file2

     DESCRIPTION
          Cmp compares two files.  (If file1 is -, the standard input
          is used.)  Under all options, cmp makes no comment if the
          files are the same.  If the files differ, cmp announces the
          byte and line number where the difference occurred.  If one
          file is an initial subsequence of the other, that fact is
          noted.

          Options:

          -l    Print the byte number (decimal) and the differing
                bytes (octal) for each difference.

          -s    Print nothing for differing files; return codes only.
                If the files are the same, cmp prints nothing.


     EXAMPLES
          $ cmp -l oldmembers currentmembers

          This example will compare the file "old_members" with the
          file "current_members" and report all differences.

          $ cmp -s allowed users

          This example will compare the file "allowed" with the file
          "users" and return a standard exit code but no other output.
          This is useful to compare two files then test the exit code
          in a shell script.

     SEE ALSO
          comm(1), diff(1), berk_diff(1).

     DIAGNOSTICS
          Exit code 0 is returned for identical files, 1 for different
          files, and 2 for an inaccessible file or missing argument.













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