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freebsd/usr.bin/gzip/zgrep.1
Xin LI 9a9ea25f4a Replace the GNU gzip with a slightly modified NetBSD gzip. The
NetBSD version is a feature-to-feature re-implementation of GNU
gzip using the freely-redistributable zlib and this version is
expected to be mostly bug-to-bug compatible with the GNU
implementation.

 - Because this is a piece of mature code and we want to make
   changes so it is added directly rather than importing to
   src/contrib.
 - Connect newly added code to src/usr.bin/ and rescue/rescue
   build.
 - Disconnect the GNU gzip code from build for now, they will
   be eventually removed completely.
 - Provide two new src.conf(5) knobs, WITHOUT_BZIP2_SUPPORT and
   WITHOUT_BZIP2.

Tested by:	kris (full exp-7 pointyhat build)
Approved by:	core (importing a 4-clause BSD licensed file)
Approved by:	re (adding new utility during -HEAD code slush)
2007-01-26 10:19:08 +00:00

99 lines
2.4 KiB
Groff

.\" $NetBSD: zgrep.1,v 1.2 2005/09/11 23:30:20 wiz Exp $
.\"
.\" Copyright (c) 2003 Thomas Klausner.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. The name of the author may not be used to endorse or promote products
.\" derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
.\"
.\" $FreeBSD$
.Dd January 26, 2007
.Dt ZGREP 1
.Os
.Sh NAME
.Nm zgrep ,
.Nm zegrep ,
.Nm zfgrep
.Nd print lines matching a pattern in gzip-compressed files
.Sh SYNOPSIS
.Nm
.Op Ar grep-flags
.Op Fl -
.Ar pattern
.Op Ar files ...
.Pp
.Nm zegrep
.Op Ar grep-flags
.Op Fl -
.Ar pattern
.Op Ar
.Pp
.Nm zfgrep
.Op Ar grep-flags
.Op Fl -
.Ar pattern
.Op Ar
.Sh DESCRIPTION
.Nm
runs
.Xr grep 1
on
.Ar files
or stdin, if no
.Ar files
argument is given, after decompressing them with
.Xr zcat 1 .
.Pp
The
.Ar grep-flags
and
.Ar pattern
arguments are passed on to
.Xr grep 1 .
If an
.Fl e
flag is found in the
.Ar grep-flags ,
.Nm
will not look for a
.Ar pattern
argument.
.Pp
.Nm zegrep
calls
.Xr egrep 1 ,
while
.Nm zfgrep
calls
.Xr fgrep 1 .
.Sh EXIT STATUS
In case of missing arguments or missing pattern,
1 will be returned, otherwise 0.
.Sh SEE ALSO
.Xr egrep 1 ,
.Xr fgrep 1 ,
.Xr grep 1 ,
.Xr gzip 1 ,
.Xr zcat 1
.Sh AUTHORS
.An Thomas Klausner
.Aq wiz@NetBSD.org