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