NAME¶
Zcmp - decompress and compare two files byte by byte
SYNOPSIS¶
zcmp [
options]
file1 [
file2]
DESCRIPTION¶
Zcmp compares two files ("-" means standard input), and if they
differ, tells the first byte and line number where they differ. Bytes and
lines are numbered starting with 1. If any given file is compressed, its
uncompressed content is used. Compressed files are uncompressed on the fly; no
temporary files are created. The supported compressors are bzip2, gzip, lzip
and xz.
Compares <file1> to <file2>. If <file2> is omitted zcmp tries
the following: If <file1> is compressed, compares <file1> to the
file with the corresponding decompressed file name (removes the extension from
<file1>). If <file1> is not compressed, compares <file1> to
the uncompressed contents of <file1>.[bz2|gz|lz|xz] (the first one that
is found). If no suitable file is found, compares <file1> to data read
from standard input.
Exit status is 0 if inputs are identical, 1 if different, 2 if trouble.
OPTIONS¶
- -h, --help
- display this help and exit
- -V, --version
- output version information and exit
- -b, --print-bytes
- print differing bytes
- -i,
--ignore-initial=<n>[,<n2>]
- ignore differences in the first <n> bytes
- -l, --list
- list position, value of all differing bytes
- -n, --bytes=<n>
- compare at most <n> bytes
- -q, --quiet
- suppress all messages
- -s, --silent
- (same as --quiet)
- -v, --verbose
- verbose mode (same as --list)
Numbers may be followed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 =
1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...
REPORTING BUGS¶
Report bugs to zutils-bug@nongnu.org
Zutils home page:
http://www.nongnu.org/zutils/zutils.html
COPYRIGHT¶
Copyright © 2011 Antonio Diaz Diaz. 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.