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zgrep - search possibly compressed files for a regular expression
zgrep
[ grep_options ] [ -e ] pattern filename...
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)
Charles Levert (charles@comm.polymtl.ca)
grep(1)
, egrep(1)
,
fgrep(1)
, zdiff(1)
, zmore(1)
, znew(1)
, zforce(1)
, gzip(1)
, gzexe(1)
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