jpayne@68: .\" SPDX-License-Identifier: 0BSD
jpayne@68: .\"
jpayne@68: .\" Authors: Lasse Collin
jpayne@68: .\"          Jia Tan
jpayne@68: .\"
jpayne@68: .\" (Note that this file is not based on gzip's zdiff.1.)
jpayne@68: .\"
jpayne@68: .TH XZDIFF 1 "2024-02-13" "Tukaani" "XZ Utils"
jpayne@68: .SH NAME
jpayne@68: xzcmp, xzdiff, lzcmp, lzdiff \- compare compressed files
jpayne@68: .
jpayne@68: .SH SYNOPSIS
jpayne@68: .B xzcmp
jpayne@68: .RI [ option... ]
jpayne@68: .I file1
jpayne@68: .RI [ file2 ]
jpayne@68: .br
jpayne@68: .B xzdiff
jpayne@68: \&...
jpayne@68: .br
jpayne@68: .B lzcmp
jpayne@68: \&...
jpayne@68: .br
jpayne@68: .B lzdiff
jpayne@68: \&...
jpayne@68: .
jpayne@68: .SH DESCRIPTION
jpayne@68: .B xzcmp
jpayne@68: and
jpayne@68: .B xzdiff
jpayne@68: compare uncompressed contents of two files.
jpayne@68: Uncompressed data and options are passed to
jpayne@68: .BR cmp (1)
jpayne@68: or
jpayne@68: .BR diff (1)
jpayne@68: unless
jpayne@68: .B \-\-help
jpayne@68: or
jpayne@68: .B \-\-version
jpayne@68: is specified.
jpayne@68: .PP
jpayne@68: If both
jpayne@68: .I file1
jpayne@68: and
jpayne@68: .I file2
jpayne@68: are specified, they can be uncompressed files or files in formats that
jpayne@68: .BR xz (1),
jpayne@68: .BR gzip (1),
jpayne@68: .BR bzip2 (1),
jpayne@68: .BR lzop (1),
jpayne@68: .BR zstd (1),
jpayne@68: or
jpayne@68: .BR lz4 (1)
jpayne@68: can decompress.
jpayne@68: The required decompression commands are determined from
jpayne@68: the filename suffixes of
jpayne@68: .I file1
jpayne@68: and
jpayne@68: .IR file2 .
jpayne@68: A file with an unknown suffix is assumed to be either uncompressed
jpayne@68: or in a format that
jpayne@68: .BR xz (1)
jpayne@68: can decompress.
jpayne@68: .PP
jpayne@68: If only one filename is provided,
jpayne@68: .I file1
jpayne@68: must have a suffix of a supported compression format and the name for
jpayne@68: .I file2
jpayne@68: is assumed to be
jpayne@68: .I file1
jpayne@68: with the compression format suffix removed.
jpayne@68: .PP
jpayne@68: The commands
jpayne@68: .B lzcmp
jpayne@68: and
jpayne@68: .B lzdiff
jpayne@68: are provided for backward compatibility with LZMA Utils.
jpayne@68: .
jpayne@68: .SH EXIT STATUS
jpayne@68: If a decompression error occurs, the exit status is
jpayne@68: .BR 2 .
jpayne@68: Otherwise the exit status of
jpayne@68: .BR cmp (1)
jpayne@68: or
jpayne@68: .BR diff (1)
jpayne@68: is used.
jpayne@68: .
jpayne@68: .SH "SEE ALSO"
jpayne@68: .BR cmp (1),
jpayne@68: .BR diff (1),
jpayne@68: .BR xz (1),
jpayne@68: .BR gzip (1),
jpayne@68: .BR bzip2 (1),
jpayne@68: .BR lzop (1),
jpayne@68: .BR zstd (1),
jpayne@68: .BR lz4 (1)