Another way using the core module List::Util 
use List::Util qw(shuffle);
my @arr     = ('A'..'Z');
my $combo   = join '', (shuffle(@arr))[0..1];
print "$combo\n";

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In reply to Re^2: oneliner for selecting multiple values from array (shuffle) by toolic
in thread oneliner for selecting multiple values from array by ev00rg

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