here is a working version: 
sub fisher_yates_shuffle {
  my $deck = shift;    # $deck is a reference to an array
  my $i    = @$deck;
  while ( $i-- ) {
    my $j = int rand( $i + 1 );
    @$deck[ $i, $j ] = @$deck[ $j, $i ];
  }
}

my @aa = qw/a b c d e f/;
fisher_yates_shuffle( \@aa );

[download]
for more read perldoc -q shuffle.
Boris

In reply to Re: shuffle array (in place) by borisz
in thread shuffle array (in place) by Anonymous Monk

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