in reply to Is there a way more easy?

Algorithm::Combinatorics might help you ... the reference-section of the documentation gives you some background-reading. You may also check the other CPAN-modules containing the name combinatorics.

HTH, Rata

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Re^2: Is there a way more easy?
by spadacciniweb (Curate) on Jun 20, 2012 at 14:35 UTC

    I've solved using this code:

    #!/usr/bin/perl use strict; use warnings; use Algorithm::Combinatorics qw(variations_with_repetition); my @data = ('', 'a'..'z', 'A'..'Z','_'); my $iter = variations_with_repetition(\@data, 6); while (my $p = $iter->next) { my $plain = join '', values $p; print $plain,'.'; }
    Thank you!

    (($_="Mzz ojjdloobnf jt uvy5502383")=~y~b-zg2-5c96-81~a-z0-9~s)=~s~~~s; print