.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.37.1.
.TH ZCMP "1" "January 2011" "Zcmp (zutils) 0.9" "User Commands"
.SH NAME
Zcmp \- decompress and compare two files byte by byte
.SH SYNOPSIS
.B zcmp
[\fIoptions\fR] \fIfile1 \fR[\fIfile2\fR]
.SH 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.
.PP
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.
.PP
Exit status is 0 if inputs are identical, 1 if different, 2 if trouble.
.SH OPTIONS
.TP
\fB\-h\fR, \fB\-\-help\fR
display this help and exit
.TP
\fB\-V\fR, \fB\-\-version\fR
output version information and exit
.TP
\fB\-b\fR, \fB\-\-print\-bytes\fR
print differing bytes
.TP
\fB\-i\fR, \fB\-\-ignore\-initial=\fR<n>[,<n2>]
ignore differences in the first <n> bytes
.TP
\fB\-l\fR, \fB\-\-list\fR
list position, value of all differing bytes
.TP
\fB\-n\fR, \fB\-\-bytes=\fR<n>
compare at most <n> bytes
.TP
\fB\-q\fR, \fB\-\-quiet\fR
suppress all messages
.TP
\fB\-s\fR, \fB\-\-silent\fR
(same as \fB\-\-quiet\fR)
.TP
\fB\-v\fR, \fB\-\-verbose\fR
verbose mode (same as \fB\-\-list\fR)
.PP
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...
.SH "REPORTING BUGS"
Report bugs to zutils\-bug@nongnu.org
.br
Zutils home page: http://www.nongnu.org/zutils/zutils.html
.SH COPYRIGHT
Copyright \(co 2011 Antonio Diaz Diaz.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
.br
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.