, xzdiff, lzcmp, lzdiff compare compressed files
see also :
xzdiff - lzcmp - lzdiff - cmp - diff - xz - gzip - bzip2 - zdiff
[cmp_options] file1 [file2]
xzdiff [diff_options] file1 [file2]
lzcmp [cmp_options] file1 [file2]
lzdiff [diff_options] file1
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and xzdiff invoke cmp(1) or diff(1) on
files compressed with xz(1), lzma(1),
gzip(1), bzip2(1), or lzop(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.
lzcmp and lzdiff are provided for backward
compatibility with LZMA Utils.
the cmp(1) or diff(1) programs refer to
temporary filenames instead of those specified.
diff , xz , gzip ,
bzip2 , lzop, zdiff