/bin/bzgrep is in bzip2 1.0.6-5.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 | #!/bin/sh
# bzgrep -- a wrapper around a grep program that decompresses files as needed
# Adapted from zgrep of the Debian gzip package by Anibal Monsalve Salazar.
# Adapted from a version sent by Charles Levert <charles@comm.polymtl.ca>
# Copyright (C) 1998, 2001, 2002 Free Software Foundation
# Copyright (C) 1993 Jean-loup Gailly
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
PATH="/usr/bin:$PATH"; export PATH
prog=`echo "$0" | sed 's|.*/||'`
case "$prog" in
*egrep) grep=${EGREP-egrep} ;;
*fgrep) grep=${FGREP-fgrep} ;;
*) grep=${GREP-grep} ;;
esac
pat=""
after_dash_dash=""
files_with_matches=0
files_without_matches=0
no_filename=0
with_filename=0
while test $# -ne 0; do
case "$after_dash_dash$1" in
--d* | --rec*) echo >&2 "$0: $1: option not supported"; exit 2;;
--files-with-*) files_with_matches=1;;
--files-witho*) files_without_matches=1;;
--no-f*) no_filename=1;;
--wi*) with_filename=1;;
--*) ;;
-*)
case "$1" in
-*[dr]*) echo >&2 "$0: $1: option not supported"; exit 2;;
esac
case "$1" in
-*H*) with_filename=1;;
esac
case "$1" in
-*h*) no_filename=1;;
esac
case "$1" in
-*L*) files_without_matches=1;;
esac
case "$1" in
-*l*) files_with_matches=1;;
esac;;
esac
case "$after_dash_dash$1" in
-[ef]) opt="$opt $1"; shift; pat="$1"
if test "$grep" = grep; then # grep is buggy with -e on SVR4
grep=egrep
fi;;
-[ABCdm])opt="$opt $1 $2"; shift;;
--) opt="$opt $1"; after_dash_dash=1;;
-*) opt="$opt $1";;
*) if test -z "$pat"; then
pat="$1"
else
break;
fi;;
esac
shift
done
if test -z "$pat"; then
echo "grep through bzip2 files"
echo "usage: $prog [grep_options] pattern [files]"
exit 2
fi
if test $# -eq 0; then
bzip2 -cdfq | $grep $opt "$pat"
exit $?
fi
res=0
for i do
bzip2 -cdfq -- "$i" |
if test $files_with_matches -eq 1; then
$grep $opt "$pat" > /dev/null && printf "%s\n" "$i"
elif test $files_without_matches -eq 1; then
$grep $opt "$pat" > /dev/null || printf "%s\n" "$i"
elif test $with_filename -eq 0 && { test $# -eq 1 || test $no_filename -eq 1; }; then
$grep $opt "$pat"
else
i=$(echo "$i" | sed -e 's/[\\|&]/\\&/g')
if test $with_filename -eq 1; then
sed_script="s|^[^:]*:|${i}:|"
else
sed_script="s|^|${i}:|"
fi
# Hack adapted from GPLed code at
# http://home.comcast.net/~j.p.h/cus-faq-2
# Has the same effect as the following two lines of bash:
#
# $grep $opt "$pat" | sed "$sed_script"
# exit ${PIPESTATUS[0]}
#
# Inside the `...`, fd4 goes to the pipe whose other end is read
# and passed to eval; fd1 is the normal standard output
# preserved the line before with exec 3>&1
exec 3>&1
eval `
exec 4>&1 >&3 3>&-
{
$grep $opt "$pat" 4>&-; echo "r=$?;" >&4
} | sed "$sed_script"
`
exit $r
fi
r=$?
test $res -lt $r && res=$r
done
exit $res
|