XZDIFF(1) XZ Utils XZDIFF(1)
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files
xzcmp [option...] file1 [file2]
xzdiff ...
lzcmp ... (DEPRECATED)
lzdiff ... (DEPRECATED)
xzcmp and xzdiff compare uncompressed contents of two files.
Uncompressed data and options are passed to cmp(1) or diff(1) unless
--help or --version is specified.
If both file1 and file2 are specified, they can be uncompressed files
or files in formats that xz(1), gzip(1), bzip2(1), lzop(1), zstd(1),
or lz4(1) can decompress. The required decompression commands are
determined from the filename suffixes of file1 and file2. A file
with an unknown suffix is assumed to be either uncompressed or in a
format that xz(1) can decompress.
If only one filename is provided, file1 must have a suffix of a
supported compression format and the name for file2 is assumed to be
file1 with the compression format suffix removed.
The commands lzcmp and lzdiff are provided for backward compatibility
with LZMA Utils. They are deprecated and will be removed in a future
version.
If a decompression error occurs, the exit status is 2. Otherwise the
exit status of cmp(1) or diff(1) is used.
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zstd(1), lz4(1)
Tukaani 2025-03-06 XZDIFF(1)
NAME
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files
SYNOPSIS
xzcmp [option...] file1 [file2]
xzdiff ...
lzcmp ... (DEPRECATED)
lzdiff ... (DEPRECATED)
DESCRIPTION
xzcmp and xzdiff compare uncompressed contents of two files.
Uncompressed data and options are passed to cmp(1) or diff(1) unless
--help or --version is specified.
If both file1 and file2 are specified, they can be uncompressed files
or files in formats that xz(1), gzip(1), bzip2(1), lzop(1), zstd(1),
or lz4(1) can decompress. The required decompression commands are
determined from the filename suffixes of file1 and file2. A file
with an unknown suffix is assumed to be either uncompressed or in a
format that xz(1) can decompress.
If only one filename is provided, file1 must have a suffix of a
supported compression format and the name for file2 is assumed to be
file1 with the compression format suffix removed.
The commands lzcmp and lzdiff are provided for backward compatibility
with LZMA Utils. They are deprecated and will be removed in a future
version.
EXIT STATUS
If a decompression error occurs, the exit status is 2. Otherwise the
exit status of cmp(1) or diff(1) is used.
SEE ALSO
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), lzop(1), zstd(1), lz4(1)
Tukaani 2025-03-06 XZDIFF(1)