cmp - compare two files byte by byte
cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]
Compare two files byte by byte.
Print differing bytes.
-i SKIP --ignore-initial=SKIP
Skip the first SKIP bytes of input.
-i SKIP1:SKIP2 --ignore-initial=SKIP1:SKIP2
Skip the first SKIP1 bytes of FILE1 and the first SKIP2 bytes of
Output byte numbers and values of all differing bytes.
-n LIMIT --bytes=LIMIT
Compare at most LIMIT bytes.
-s --quiet --silent
Output nothing; yield exit status only.
Output version info.
--help Output this help.
SKIP1 and SKIP2 are the number of bytes to skip in each file. SKIP
values may be followed by the following multiplicative suffixes: kB
1000, K 1024, MB 1,000,000, M 1,048,576, GB 1,000,000,000, G
1,073,741,824, and so on for T, P, E, Z, Y.
If a FILE is ‘-’ or missing, read standard input. Exit status is 0 if
inputs are the same, 1 if different, 2 if trouble.
Written by Torbjorn Granlund and David MacKenzie.
Report bugs to: firstname.lastname@example.org GNU diffutils home page:
<http://www.gnu.org/software/diffutils/> General help using GNU
Copyright © 2010 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
The full documentation for cmp is maintained as a Texinfo manual. If
the info and cmp programs are properly installed at your site, the
should give you access to the complete manual.