116 lines
3.4 KiB
Groff
116 lines
3.4 KiB
Groff
.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.37.1.
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.TH ZDIFF "1" "July 2014" "zdiff (zutils) 1.3-pre2" "User Commands"
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.SH NAME
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zdiff \- decompress and compare two files line by line
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.SH SYNOPSIS
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.B zdiff
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[\fIoptions\fR] \fIfile1 \fR[\fIfile2\fR]
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.SH DESCRIPTION
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Zdiff compares two files ("\-" means standard input), and if they
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differ, shows the differences line by line. If any given file is
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compressed, its decompressed content is used. Zdiff is a front end to
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the diff program and has the limitation that messages from diff refer to
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temporary filenames instead of those specified.
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.PP
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The supported formats are bzip2, gzip, lzip and xz.
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.PP
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Compares <file1> to <file2>. If <file2> is omitted zdiff tries the
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following:
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.IP
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1. If <file1> is compressed, compares its decompressed contents with
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the corresponding uncompressed file (the name of <file1> with the
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extension removed).
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.IP
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2. If <file1> is uncompressed, compares it with the decompressed
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contents of <file1>.[lz|bz2|gz|xz] (the first one that is found).
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.IP
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3. If no suitable file is found, compares <file1> with data read from
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standard input.
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.PP
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Exit status is 0 if inputs are identical, 1 if different, 2 if trouble.
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.SH OPTIONS
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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display this help and exit
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.TP
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\fB\-V\fR, \fB\-\-version\fR
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output version information and exit
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.TP
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\fB\-a\fR, \fB\-\-text\fR
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treat all files as text
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.TP
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\fB\-b\fR, \fB\-\-ignore\-space\-change\fR
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ignore changes in the amount of white space
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.TP
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\fB\-B\fR, \fB\-\-ignore\-blank\-lines\fR
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ignore changes whose lines are all blank
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.TP
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\fB\-c\fR
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use the context output format
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.TP
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\fB\-C\fR, \fB\-\-context=\fR<n>
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same as \fB\-c\fR but use <n> lines of context
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.TP
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\fB\-d\fR, \fB\-\-minimal\fR
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try hard to find a smaller set of changes
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.TP
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\fB\-E\fR, \fB\-\-ignore\-tab\-expansion\fR
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ignore changes due to tab expansion
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.TP
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\fB\-\-format\fR=\fI[\fR<fmt1>][,<fmt2>]
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force given formats (bz2, gz, lz, xz)
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.TP
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\fB\-i\fR, \fB\-\-ignore\-case\fR
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ignore case differences in file contents
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.TP
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\fB\-N\fR, \fB\-\-no\-rcfile\fR
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don't read runtime configuration file
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.TP
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\fB\-p\fR, \fB\-\-show\-c\-function\fR
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show which C function each change is in
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.TP
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\fB\-q\fR, \fB\-\-brief\fR
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output only whether files differ
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.TP
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\fB\-s\fR, \fB\-\-report\-identical\-files\fR
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report when two files are identical
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.TP
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\fB\-t\fR, \fB\-\-expand\-tabs\fR
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expand tabs to spaces in output
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.TP
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\fB\-T\fR, \fB\-\-initial\-tab\fR
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make tabs line up by prepending a tab
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.TP
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\fB\-u\fR
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use the unified output format
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.TP
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\fB\-U\fR, \fB\-\-unified=\fR<n>
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same as \fB\-u\fR but use <n> lines of context
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.TP
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\fB\-w\fR, \fB\-\-ignore\-all\-space\fR
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ignore all white space
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.TP
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\fB\-\-bz2=\fR<command>
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set compressor and options for bzip2 format
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.TP
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\fB\-\-gz=\fR<command>
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set compressor and options for gzip format
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.TP
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\fB\-\-lz=\fR<command>
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set compressor and options for lzip format
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.TP
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\fB\-\-xz=\fR<command>
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set compressor and options for xz format
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.PP
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Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,
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Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...
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.SH "REPORTING BUGS"
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Report bugs to zutils\-bug@nongnu.org
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.br
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Zutils home page: http://www.nongnu.org/zutils/zutils.html
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.SH COPYRIGHT
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Copyright \(co 2014 Antonio Diaz Diaz.
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License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/gpl.html>
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.br
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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