search in jar file

search_content_jar.sh

pattern="smtp"
for jar in /usr/share/java/*.jar; do 
    for file in $(unzip -l $jar | perl -nle 'split /\s+/ and print $_[-1];'); do
        unzip -c $jar $file | grep -qi "$pattern" && ( 
            rpm -qf $jar 2>&1 >/dev/null && \
                rpm -qf $jar || \
                echo "orphan jar: $jar"
        ); 
    done
done | sort -u