SIMPLE SOLUTIONS

ZCMP - reference manual online

Decompress and compare two files byte by byte.

Chapter
May 2015
ZCMP(1)                                   User Commands                                   ZCMP(1)

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 decompressed content is used. Compressed files are decompressed on the fly; no temporary files are created. The supported formats are bzip2, gzip, lzip and xz. Compares <file1> to <file2>. If <file2> is omitted zcmp tries the following: 1. If <file1> is compressed, compares its decompressed contents with the corre‐ sponding uncompressed file (the name of <file1> with the extension removed). 2. If <file1> is uncompressed, compares it with the decompressed contents of <file1>.[lz|bz2|gz|xz] (the first one that is found). 3. If no suitable file is found, compares <file1> with 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 -M, --format=<list> process only the formats in <list> -n, --bytes=<n> compare at most <n> bytes -N, --no-rcfile don't read runtime configuration file -O, --force-format=[<f1>][,<f2>] force given formats (bz2, gz, lz, xz) -q, --quiet suppress all messages -s, --silent (same as --quiet) -v, --verbose verbose mode (same as --list) --bz2=<command> set compressor and options for bzip2 format --gz=<command> set compressor and options for gzip format --lz=<command> set compressor and options for lzip format --xz=<command> set compressor and options for xz format 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 @nongnu.org Zutils home page: http://www.nongnu.org/zutils/zutils.html
zcmp (zutils) 1.4 May 2015 ZCMP(1)
This manual Reference Other manuals
zcmp(1) referred by bzexe(1) | gzexe(1) | gzip(1)
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