xz/src/scripts/xzdiff.1

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.\"
.\" Original zdiff.1 for gzip: Jean-loup Gailly
.\"
.\" Modifications for XZ Utils: Lasse Collin
.\" Andrew Dudman
.\"
.\" License: GNU GPLv2+
.\"
.TH XZDIFF 1 "2009-07-05" "Tukaani" "XZ Utils"
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.SH NAME
xzcmp, xzdiff, lzcmp, lzdiff \- compare compressed files
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.SH SYNOPSIS
.B xzcmp
.RI [ cmp_options "] " file1 " [" file2 ]
.br
.B xzdiff
.RI [ diff_options "] " file1 " [" file2 ]
.br
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.B lzcmp
.RI [ cmp_options "] " file1 " [" file2 ]
.br
.B lzdiff
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.RI [ diff_options "] " file1 " [" file2 ]
.SH DESCRIPTION
.B xzcmp
and
.B xdiff
invoke
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.BR cmp (1)
or
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.BR diff (1)
on files compressed with
.BR xz (1),
.BR lzma (1),
.BR gzip (1),
or
.BR bzip2 (1).
All options specified are passed directly to
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.B cmp
or
.BR diff .
If only one file is specified, then the files compared are
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.I file1
(which must have a suffix of a supported compression format) and
.I file1
from which the compression format suffix has been stripped.
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If two files are specified, then they are uncompressed if necessary and fed to
.BR cmp (1)
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or
.BR diff (1).
The exit status from
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.B cmp
or
.B diff
is preserved.
.PP
The names
.B lzcmp
and
.B lzdiff
are provided for backward compatibility with LZMA Utils.
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.SH "SEE ALSO"
.BR cmp (1),
.BR diff (1),
.BR xz (1),
.BR gzip (1),
.BR bzip2 (1),
.BR zdiff (1)
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.SH BUGS
Messages from the
.BR cmp (1)
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or
.BR diff (1)
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programs refer to temporary filenames instead of those specified.