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OpenSolaris 2009.06 - man page for bzdiff (opensolaris section 1)

BZDIFF(1)						      General Commands Manual							 BZDIFF(1)

bzcmp, bzdiff - compare bzip2 compressed files
bzcmp [ cmp_options ] file1 [ file2 ] bzdiff [ diff_options ] file1 [ file2 ]
Bzcmp and bzdiff are used to invoke the cmp or the diff program on bzip2 compressed files. All options specified are passed directly to cmp or diff. If only 1 file is specified, then the files compared are file1 and an uncompressed file1.bz2. If two files are specified, then they are uncompressed if necessary and fed to cmp or diff. The exit status from cmp or diff is preserved.
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWbzip | +--------------------+-----------------+ |Interface Stability | Committed | +--------------------+-----------------+
cmp(1), diff(1), bzmore(1), bzless(1), bzgrep(1), bzip2(1)
Messages from the cmp or diff programs refer to temporary filenames instead of those specified. BZDIFF(1)