1#!/bin/sh 2# 3# zipgrep: Use unzip and egrep to search the specified members of a 4# Zip archive for a string or pattern. Search all members if no members 5# are specified explicitly. The script attempts to handle egrep's "-h" 6# and "-l" options internally. 7# 8# This script assumes that the desired "unzip" and "egrep" (and "sed") 9# programs are on the user's PATH. 10# 11 12pat="" 13opt="" 14while test $# -ne 0; do 15 case "$1" in 16 -e | -f) opt="$opt $1"; shift; pat="$1";; 17 -*) opt="$opt $1";; 18 *) if test -z "$pat"; then 19 pat="$1" 20 else 21 break; 22 fi;; 23 esac 24 shift 25done 26 27if test $# = 0; then 28 echo usage: `basename "$0"` "[egrep_options] pattern zipfile [members...]" 29 echo Uses unzip and egrep to search the zip members for a string or pattern. 30 exit 1 31fi 32zipfile="$1"; shift 33 34list=0 35silent=0 36opt=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'` 37case "$opt" in 38 *l*) list=1; opt=`echo $opt | sed s/l//` 39esac 40case "$opt" in 41 *h*) silent=1 42esac 43if test -n "$opt"; then 44 opt="-$opt" 45fi 46 47status_grep_global=1 48IFS=' 49' 50 51# Escape shell-special characters in "pat". 52pat=` echo "$pat" | \ 53 sed -e 's/\\\\/\\\\\\\\/g' -e 's/|/\\\|/g' -e 's/&/\\\&/g' ` 54 55# Use "unzip -Z1" to get a listing of the specified members from the 56# specified archive. Escape any backslashes in a file name. 57for i in `unzip -Z1 "$zipfile" ${1+"$@"} | sed -e 's/\\\\/\\\\\\\\/g' `; do 58 if test $list -eq 1; then 59 # "-l": Show only the archive member name, not the matching line(s). 60 unzip -p-L "$zipfile" "$i" | \ 61 egrep $opt "$pat" > /dev/null && echo "$i" 62 status_grep=$? 63 elif test $silent -eq 1; then 64 # "-h": Show only the matching line(s), not the archive member name. 65 # ("-s" in "opt" will silence "egrep", stopping all output.) 66 unzip -p-L "$zipfile" "$i" | \ 67 egrep $opt "$pat" 68 status_grep=$? 69 else 70 # Escape (or re-escape) shell-special characters in the archive 71 # member name, "i". 72 i=` echo "$i" | \ 73 sed -e 's/\\\\/\\\\\\\\/g' -e 's/|/\\\|/g' -e 's/&/\\\&/g' ` 74 75 # Globally, send fd 4 to stdout. In the pipeline, send normal 76 # stdout to fd 4, and send grep status to fd 3. Collect fd 3 77 # with ``. 78 exec 4>&1 79 status_grep=` ( \ 80 ( unzip -p-L "$zipfile" "$i" | \ 81 egrep $opt "$pat" 1>&4 ; echo $? >&3 ) 4>&1 | \ 82 sed "s|^|${i}:|" 1>&4 \ 83 ) 3>&1 ` 84 fi 85 86 # Save the primary command status. (May be the grep status.) 87 sts=$? 88 # If this grep status was zero, set the global grep status to zero. 89 test "$status_grep" -eq 0 && status_grep_global=0 90 # If this grep status was not zero or one, exit now. 91 test "$status_grep" -gt 1 && exit "$status_grep" 92 93done 94 95# If "sts" is good (0), then exit with the global grep status. 96# Else, when "sts" is bad, exit with the worst status we can find. 97if test $sts -eq 0 ; then 98 exit $status_grep_global 99else 100 if test "$status_grep" -gt 1 ; then 101 exit "$status_grep" 102 else 103 exit $sts 104 fi 105fi 106