I would shuffle the list of files and select the first $numOfRandFiles from it, like 

use List::Util 'shuffle';
...
(shuffle(@audiofiles))[0 .. $numOfRandFiles - 1];

[download]

Note that this generates a list, not a hash.
If you cannot (or don't want to) use a module, you need to reinvent the wheel.

Greetings,
-jo

$gryYup$d0ylprbpriprrYpkJl2xyl~rzg??P~5lp2hyl0p$

In reply to Re: Add a fixed number of unique elements to hash by jo37
in thread Add a fixed number of unique elements to hash by Vasek

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