Perl Program to find a jar persent within a jar

This .pl program is used to find a jar within a jar present in the directory/sub-directories:

main();
sub main
{
$list = "<root>/results/list.txt";
system("touch $list");
        #system("find \. \-name \\\*\.jar  > $list ");
        system("find . -name *.jar  > $list");
        open(FILE,"$list");
        $class="@ARGV[0]";
        $flag=1;
        print "$class in follwing jar files:::\n";
system("rm -f <root>/results/class_find");
system("touch <root>/results/class_find");
$dest = ("<root>/results/class_find");
while(<FILE>)
        {
                chop;
                $fileName="$_";
                @command=("unzip -l $fileName|grep $class >> $dest");
                $flag=system("@command");
                if($flag == 0)
                {
                        print("JAR FILENAME: $fileName\n");
                        $flag=1;
                }
        }
}