$ perl -le'
my @Array1 = qw{ A B A C D C D B };
my @Array2 = qw{ 10 13 11 9 7 6 4 2 };
my @Array3 = qw{ as ad ae at ag ak ao we };

print "\@Array1 = @Array1\n\@Array2 = @Array2\n\@Array3 = @Array3\n";

my @order = sort { $Array1[$a] cmp $Array1[$b] || $Array2[$b] <=> $Arr
+ay2[$a] } 0 .. $#Array1;

print "\@Array1 = @Array1[@order]\n\@Array2 = @Array2[@order]\n\@Array
+3 = @Array3[@order]";
'
@Array1 = A B A C D C D B
@Array2 = 10 13 11 9 7 6 4 2
@Array3 = as ad ae at ag ak ao we

@Array1 = A A B B C C D D
@Array2 = 11 10 13 2 9 6 7 4
@Array3 = ae as ad we at ak ag ao
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