Remember: Perl is more than just regular expressions :)

$str = '/a/b/c/d/e/abc00000';
$end = (split '/', $str)[-1]; # pull the last element split() returns
print "we wanted '$end'";
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$"=$,,$_=q>|\p4<6 8p<M/_|<('=>
.q>.<4-KI<l|2$<6%s!<qn#F<>;$,
.=pack'N*',"@{[unpack'C*',$_]
}"for split/</;$_=$,,y[A-Z a-z]
         {}cd;print lc
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