95 lines
2.8 KiB
Bash
95 lines
2.8 KiB
Bash
#!/bin/sh
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#
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# Copyright (c) April 1996 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL [your name] OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# zgrep - search possibly compressed files for a regular expression
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#
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# $Id: zgrep.getopt,v 1.5 1997/04/19 20:06:57 wosch Exp $
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PATH=/bin:/usr/bin:$PATH; export PATH
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# grep variant
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case "$0" in
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*egrep) grep=${EGREP-egrep} ;;
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*fgrep) grep=${FGREP-fgrep} ;;
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*) grep=${GREP-grep} ;;
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esac
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gzip=gzip gzipopt="-cdfq" pattern= grepopt= files= line= header=
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# check options
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while getopts "0123456789A:B:CEFGVX:bce:f:hiLlnqsvwxy" option
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do
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case "$option" in
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e|f) pattern="-$option $OPTARG";; # -f file
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l|L) line=-$option; grepopt="$grepopt -$option";;
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h|q) header=-h; grepopt="$grepopt -$option";;
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# rest
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[0-9CEFGVbchiLlnqsvwxy]) grepopt="$grepopt -$option";;
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[ABXef]) grepopt="$grepopt -$option $OPTARG";;
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esac
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done
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shift $(($OPTIND - 1))
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# check pattern
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case X"$pattern" in
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X) case $# in
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0) echo "usage: $0 [grep_options] pattern [files]"; exit 1;;
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*) pattern=$1; shift;;
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esac
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esac
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files="$@"
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# no shell loop neccessary for option -q or -h
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# and a single file or reading from stdin
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case "$header"X"$#" in
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-h*|-q*|X0|X1) $gzip $gzipopt -- $files | $grep $grepopt -- "$pattern"
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exit $?;;
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esac
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for f in $files
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do
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case "$line" in
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-l) if $gzip $gzipopt -- $f |
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$grep $grepopt -- "$pattern" >/dev/null
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then
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echo $f
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fi
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;;
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-L) if $gzip $gzipopt -- $f |
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$grep $grepopt -- "$pattern" >/dev/null; then :
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else
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echo $f
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fi
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;;
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*) $gzip $gzipopt -- $f | $grep $grepopt -- "$pattern" |
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sed "s%^%${f}:%"
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;;
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esac
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done
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