SYNOPSIS

       comm [-123] file1 file2

DESCRIPTION

       Comm reads file1 and file2, which should be ordered in the current col-
       lating sequence, 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.

ENVIRONMENT VARIABLES

       LANG, LC_ALL
              See locale(7).

       LC_COLLATE
              Sets the collation sequence.

       LC_CTYPE
              Determines the mapping of bytes to characters.

SEE ALSO

       cmp(1), diff(1), uniq(1), locale(7)



Heirloom Toolchest                  3/16/03                            COMM(1)