ZGREP(1) User Commands ZGREP(1)
NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ]
[ -e ] pattern filename...
DESCRIPTION
The
zgrep command invokes
grep on compressed or gzipped 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 the GREP environment variable is set,
zgrep uses it as the
grep program to be invoked.
EXIT STATUS
Exit status is 0 for a match, 1 for no matches, and 2 if trouble.
BUGS
The following
grep options are not supported:
--dereference-recursive (
-R),
--directories (
-d),
--exclude,
--exclude-from,
--exclude-dir,
--include,
--null (
-Z),
--null-data (
-z), and
--recursive (
-r).
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO
grep(1),
gzexe(1),
gzip(1),
zdiff(1),
zforce(1),
zmore(1),
znew(1) ZGREP(1)
