zcmp, zdiff - compare compressed files
zcmp [ cmp_options? file1 [ file2?
zdiff [ diff_options? file1 [ file2?
Zcmp and zdiff are used to invoke the
cmp or the diff program on 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.gz. If two files are specified, then they are
uncompressed if necessary and fed to cmp or
diff. The exit status from cmp or diff
cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1),
Messages from the cmp or diff programs refer
to temporary filenames instead of those