.TH ZDIFF 1 .SH NAME zcmp, zdiff \- compare compressed files .SH SYNOPSIS .B zcmp [ cmp_options ] file1 [ file2 ] .br .B zdiff [ diff_options ] file1 [ file2 ] .SH DESCRIPTION .I Zcmp and .I zdiff are used to invoke the .I cmp or the .I diff program on files compressed via .IR gzip "." All options specified are passed directly to .I cmp or .IR diff "." If only 1 file is specified, then the files compared are .I file1 and an uncompressed .IR file1 ".gz." If two files are specified, then they are uncompressed if necessary and fed to .I cmp or .IR diff "." The exit status from .I cmp or .I diff is preserved. .SH "SEE ALSO" cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1) .SH BUGS Messages from the .I cmp or .I diff programs refer to temporary filenames instead of those specified.