1 #!/bin/sh 2 3 # Bzgrep wrapped for bzip2, 4 # adapted from zgrep by Philippe Troin <phil (at] fifi.org> for Debian GNU/Linux. 5 ## zgrep notice: 6 ## zgrep -- a wrapper around a grep program that decompresses files as needed 7 ## Adapted from a version sent by Charles Levert <charles (at] comm.polymtl.ca> 8 9 PATH="/usr/bin:$PATH"; export PATH 10 11 prog=`echo $0 | sed 's|.*/||'` 12 case "$prog" in 13 *egrep) grep=${EGREP-egrep} ;; 14 *fgrep) grep=${FGREP-fgrep} ;; 15 *) grep=${GREP-grep} ;; 16 esac 17 pat="" 18 while test $# -ne 0; do 19 case "$1" in 20 -e | -f) opt="$opt $1"; shift; pat="$1" 21 if test "$grep" = grep; then # grep is buggy with -e on SVR4 22 grep=egrep 23 fi;; 24 -A | -B) opt="$opt $1 $2"; shift;; 25 -*) opt="$opt $1";; 26 *) if test -z "$pat"; then 27 pat="$1" 28 else 29 break; 30 fi;; 31 esac 32 shift 33 done 34 35 if test -z "$pat"; then 36 echo "grep through bzip2 files" 37 echo "usage: $prog [grep_options] pattern [files]" 38 exit 1 39 fi 40 41 list=0 42 silent=0 43 op=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'` 44 case "$op" in 45 *l*) list=1 46 esac 47 case "$op" in 48 *h*) silent=1 49 esac 50 51 if test $# -eq 0; then 52 bzip2 -cdfq | $grep $opt "$pat" 53 exit $? 54 fi 55 56 res=0 57 for i do 58 if test -f "$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 $i 61 r=$? 62 elif test $# -eq 1 -o $silent -eq 1; then 63 bzip2 -cdfq "$i" | $grep $opt "$pat" 64 r=$? 65 else 66 j=${i//\\/\\\\} 67 j=${j//|/\\|} 68 j=${j//&/\\&} 69 j=`printf "%s" "$j" | tr '\n' ' '` 70 bzip2 -cdfq "$i" | $grep $opt "$pat" | sed "s|^|${j}:|" 71 r=$? 72 fi 73 test "$r" -ne 0 && res="$r" 74 done 75 exit $res 76
