Oh. That was foolish of me not to notice. Thank you.
That's a semi-predicate problem and is unsolveable.
What is semi-predicate? It sounds theoretical.
In which version of Perl?
This is perl, v5.10.1 (*) built for i486-linux-gnu-thread-multi
You can read text via IO though.
Is that what onelesd is talking about? Is it in man perlio?