cmp(1)

NAME
     cmp - compare two files

SYNOPSIS
     cmp [-ls] file1 file2

OPTIONS

     -l   Loud mode. Print bytes that differ (in octal)

     -s   Silent mode.  Print nothing, just return exit status

EXAMPLES

     cmp file1 file2     # Tell whether the files are the same

     cmp -l file1 file2  # Print all corresponding bytes that differ

DESCRIPTION

     Two files are  compared.   If  they  are  identical,  exit  status  0  is
     returned.   If  they  differ,  exit  status  1 is returned.  If the files
     cannot be opened, exit  status  2  is  returned.   If  one  of  the  file
     arguments is -, then stdin is compared to the other file.

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