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There is the perldoc tool installed with your Perl, and also the perlfaq online. Searching for your keywords yields good explanations of how to do things:

> perldoc -q unique How can I get the unique keys from two hashes? How can I remove duplicate elements from a list or array? > perldoc -q sort How do I sort an array by (anything)?

In reply to Re: Perl sorting unique values by Corion
in thread Perl sorting unique values by pr09

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