NAME

cmp − compare two files

SYNTAX

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. 

RESTRICTIONS

Only one option may be specified at a time.