$ find /usr/lib/perl* -type f -name Zlib.pm -o -name Storable.pm | xargs egrep -i '\$version = '
/usr/lib/perl5/5.8.5/i386-linux-thread-multi/Storable.pm:$VERSION = '2.15';
/usr/lib/perl5/5.8.5/Memoize/Storable.pm:$VERSION = 0.65;
/usr/lib/perl5/site_perl/5.8.5/IO/Zlib.pm:$VERSION = "1.04";
/usr/lib/perl5/site_perl/5.8.5/i386-linux-thread-multi/Compress/Zlib.pm:$VERSION = "1.41" ;