.TH ZDIFF 1.SH NAMEzcmp, zdiff \- compare compressed files.SH SYNOPSIS.B zcmp[ cmp_options ] file1[ file2 ].br.B zdiff[ diff_options ] file1[ file2 ].SH DESCRIPTION.I  Zcmpand .I zdiffare used to invoke the.I cmpor the.I diffprogram on compressed files.  All options specified are passed directly to.I cmpor.IR diff "."If only 1 file is specified, then the files compared are.I file1and an uncompressed.IR file1 ".gz."If two files are specified, then they are uncompressed if necessary and fed to.I cmpor.IR diff "."The exit status from .I cmpor.I diffis preserved..SH "SEE ALSO"cmp(1), diff(1), zmore(1), zgrep(1), znew(1), zforce(1), gzip(1), gzexe(1).SH BUGSMessages from the.I cmpor.I diffprograms refer to temporary filenames instead of those specified.