xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files
xzcmp [cmp_options] file1
[file2]
xzdiff [diff_options] file1
[file2]
lzcmp [cmp_options] file1
[file2]
lzdiff [diff_options] file1
[file2]
xzcmp and xzdiff invoke
cmp(1) or diff(1) on files compressed
with xz(1), lzma(1),
gzip(1), bzip2(1),
lzop(1), or zstd(1). All options
specified are passed directly to cmp(1) or
diff(1). If only one file is specified, then the files
compared are file1 (which must have a suffix of a supported
compression format) and file1 from which the compression format
suffix has been stripped. If two files are specified, then they are
uncompressed if necessary and fed to cmp(1) or
diff(1). The exit status from cmp(1)
or diff(1) is preserved unless a decompression error
occurs; then exit status is 2.
The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils.