bsd man page for cmp

CMP(1)							      General Commands Manual							    CMP(1)

NAME
       cmp - compare two files

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

DESCRIPTION
       The  two  files are compared.  (If file1 is `-', the standard input is used.)  Under default options, cmp makes no comment if the files are
       the same; if they differ, it announces the byte and line number at which 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.

SEE ALSO
       diff(1), comm(1)

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

7th Edition							  April 29, 1985							    CMP(1)