NAME
    zgrep - search possibly compressed files for a regular expression

SYNOPSIS
    zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION
    Zgrep is used to invoke the grep on compress'ed or gzip'ed files. All
    options specified are passed directly to grep. If no file is speci-
    fied, then the standard input is decompressed if necessary and fed to
    grep. Otherwise the given files are uncompressed if necessary and fed
    to grep.

    If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used
    instead of grep.  If the GREP environment variable is set, zgrep uses
    it as the grep program to be invoked. For example:

   for sh: GREP=fgrep zgrep string files
   for csh: (setenv GREP fgrep; zgrep string files)

AUTHOR
    Charles Levert (charles@comm.polymtl.ca)

SEE ALSO
   grep(1), egrep(1),fgrep(1),zdiff(1),zmore(1),znew(1),zforce(1),
   gzip(1),gzexe(1)