find-in-jars.sh

#!/bin/bash
# @Function
# Find file in the jar files under current directory
#
# @Usage
#   $ find-in-jars.sh log4j\\.xml
#   $ find-in-jars.sh 'log4j\.properties'
#   $ find-in-jars.sh 'log4j\.properties|log4j\.xml'
#
# @author Jerry Lee

PROG=`basename $0`

usage() {
    cat <<EOF
Usage: ${PROG} [OPTION]... PATTERN
Find file in the jar files under specified directory(recursive, include subdirectory)
Example: ${PROG} -d libs 'log4j\.properties$'

Options:
    -d, --dir       the directory that find jar files
    -h, --help      display this help and exit
EOF
    exit $1
}

ARGS=`getopt -a -o d:h -l dir:,help -- "$@"`
[ $? -ne 0 ] && usage 1
eval set -- "${ARGS}"

while true; do
    case "$1" in
    -d|--dir)
        dir="$2"
        shift 2
        ;;
    -h|--help)
        usage
        ;;
    --)
        shift
        break
        ;;
    esac
done
[ -z "$1" ] && { echo No find file pattern! ; usage 1; }
dir=${dir:-.}

find ${dir} -iname '*.jar' | while read jarFile; do
    jar tf ${jarFile} | egrep "$1" | while read file; do
        echo "${jarFile}"\!"${file}"
    done
done