It doesn't work for me on: 
This is perl, v5.8.9 built for x86_64-linux

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I get the same error as you do. Your perl install is probably fine. This poem may never have compiled. It does compile when I delete the comma after "not".

In reply to Re^2: By Sharon Hopkins (also in Programming Perl) by toolic
in thread Listen, by Sharon Hopkins (also in Programming Perl) by jdube

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