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80 lines
1.5 KiB
Groff
80 lines
1.5 KiB
Groff
.\"
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.\" Original zdiff.1 for gzip: Jean-loup Gailly
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.\"
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.\" Modifications for XZ Utils: Lasse Collin
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.\" Andrew Dudman
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.\"
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.\" License: GNU GPLv2+
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.\"
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.TH XZDIFF 1 "2021-06-04" "Tukaani" "XZ Utils"
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.SH NAME
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xzcmp, xzdiff, lzcmp, lzdiff \- compare compressed files
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.SH SYNOPSIS
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.B xzcmp
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.RI [ cmp_options "] " file1 " [" file2 ]
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.br
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.B xzdiff
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.RI [ diff_options "] " file1 " [" file2 ]
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.br
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.B lzcmp
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.RI [ cmp_options "] " file1 " [" file2 ]
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.br
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.B lzdiff
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.RI [ diff_options "] " file1 " [" file2 ]
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.SH DESCRIPTION
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.B xzcmp
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and
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.B xzdiff
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invoke
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.BR cmp (1)
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or
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.BR diff (1)
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on files compressed with
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.BR xz (1),
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.BR lzma (1),
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.BR gzip (1),
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.BR bzip2 (1),
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.BR lzop (1),
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or
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.BR zstd (1).
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All options specified are passed directly to
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.BR cmp (1)
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or
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.BR diff (1).
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If only one file is specified, then the files compared are
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.I file1
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(which must have a suffix of a supported compression format) and
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.I file1
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from which the compression format suffix has been stripped.
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If two files are specified,
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then they are uncompressed if necessary and fed to
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.BR cmp (1)
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or
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.BR diff (1).
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The exit status from
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.BR cmp (1)
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or
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.BR diff (1)
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is preserved unless a decompression error occurs; then exit status is 2.
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.PP
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The names
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.B lzcmp
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and
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.B lzdiff
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are provided for backward compatibility with LZMA Utils.
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.SH "SEE ALSO"
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.BR cmp (1),
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.BR diff (1),
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.BR xz (1),
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.BR gzip (1),
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.BR bzip2 (1),
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.BR lzop (1),
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.BR zstd (1),
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.BR zdiff (1)
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.SH BUGS
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Messages from the
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.BR cmp (1)
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or
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.BR diff (1)
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programs refer to temporary filenames instead of those specified.
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