ZGREP(1)                                                                                 ZGREP(1)

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 specified, then the standard input  is  decom-
       pressed  if necessary and fed to grep.  Otherwise the given files are uncompressed if nec-
       essary 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)