Chris@4: #!/bin/sh
Chris@4: 
Chris@4: # Bzgrep wrapped for bzip2, 
Chris@4: # adapted from zgrep by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.
Chris@4: ## zgrep notice:
Chris@4: ## zgrep -- a wrapper around a grep program that decompresses files as needed
Chris@4: ## Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
Chris@4: 
Chris@4: PATH="/usr/bin:$PATH"; export PATH
Chris@4: 
Chris@4: prog=`echo $0 | sed 's|.*/||'`
Chris@4: case "$prog" in
Chris@4: 	*egrep)	grep=${EGREP-egrep}	;;
Chris@4: 	*fgrep)	grep=${FGREP-fgrep}	;;
Chris@4: 	*)	grep=${GREP-grep}	;;
Chris@4: esac
Chris@4: pat=""
Chris@4: while test $# -ne 0; do
Chris@4:   case "$1" in
Chris@4:   -e | -f) opt="$opt $1"; shift; pat="$1"
Chris@4:            if test "$grep" = grep; then  # grep is buggy with -e on SVR4
Chris@4:              grep=egrep
Chris@4:            fi;;
Chris@4:   -A | -B) opt="$opt $1 $2"; shift;;
Chris@4:   -*)	   opt="$opt $1";;
Chris@4:    *)      if test -z "$pat"; then
Chris@4: 	     pat="$1"
Chris@4: 	   else
Chris@4: 	     break;
Chris@4:            fi;;
Chris@4:   esac
Chris@4:   shift
Chris@4: done
Chris@4: 
Chris@4: if test -z "$pat"; then
Chris@4:   echo "grep through bzip2 files"
Chris@4:   echo "usage: $prog [grep_options] pattern [files]"
Chris@4:   exit 1
Chris@4: fi
Chris@4: 
Chris@4: list=0
Chris@4: silent=0
Chris@4: op=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'`
Chris@4: case "$op" in
Chris@4:   *l*) list=1
Chris@4: esac
Chris@4: case "$op" in
Chris@4:   *h*) silent=1
Chris@4: esac
Chris@4: 
Chris@4: if test $# -eq 0; then
Chris@4:   bzip2 -cdfq | $grep $opt "$pat"
Chris@4:   exit $?
Chris@4: fi
Chris@4: 
Chris@4: res=0
Chris@4: for i do
Chris@4:   if test -f "$i"; then :; else if test -f "$i.bz2"; then i="$i.bz2"; fi; fi
Chris@4:   if test $list -eq 1; then
Chris@4:     bzip2 -cdfq "$i" | $grep $opt "$pat" 2>&1 > /dev/null && echo $i
Chris@4:     r=$?
Chris@4:   elif test $# -eq 1 -o $silent -eq 1; then
Chris@4:     bzip2 -cdfq "$i" | $grep $opt "$pat"
Chris@4:     r=$?
Chris@4:   else
Chris@4:     j=${i//\\/\\\\}
Chris@4:     j=${j//|/\\|}
Chris@4:     j=${j//&/\\&}
Chris@4:     j=`printf "%s" "$j" | tr '\n' ' '`
Chris@4:     bzip2 -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${j}:|"
Chris@4:     r=$?
Chris@4:   fi
Chris@4:   test "$r" -ne 0 && res="$r"
Chris@4: done
Chris@4: exit $res