3 # Bzgrep wrapped for bzip2,
4 # adapted from zgrep by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.
6 ## zgrep -- a wrapper around a grep program that decompresses files as needed
7 ## Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
9 PATH="/usr/bin:$PATH"; export PATH
11 prog=`echo $0 | sed 's|.*/||'`
13 *egrep) grep=${EGREP-egrep} ;;
14 *fgrep) grep=${FGREP-fgrep} ;;
15 *) grep=${GREP-grep} ;;
18 while test $# -ne 0; do
20 -e | -f) opt="$opt $1"; shift; pat="$1"
21 if test "$grep" = grep; then # grep is buggy with -e on SVR4
24 -A | -B) opt="$opt $1 $2"; shift;;
26 *) if test -z "$pat"; then
35 if test -z "$pat"; then
36 echo "grep through bzip2 files"
37 echo "usage: $prog [grep_options] pattern [files]"
43 op=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'`
51 if test $# -eq 0; then
52 bzip2 -cdfq | $grep $opt "$pat"
58 if test -f "$i"; then :; else if test -f "$i.bz2"; then i="$i.bz2"; fi; fi
59 if test $list -eq 1; then
60 bzip2 -cdfq "$i" | $grep $opt "$pat" 2>&1 > /dev/null && echo $i
62 elif test $# -eq 1 -o $silent -eq 1; then
63 bzip2 -cdfq "$i" | $grep $opt "$pat"
69 j=`printf "%s" "$j" | tr '\n' ' '`
70 bzip2 -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${j}:|"
73 test "$r" -ne 0 && res="$r"