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 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)