The following should achieve pretty random results within the constraints you asked for - 10 unique numbers from 1-10 sorted randomly. 
@arr = 1..10;
randomize(\@arr);

print "@arr";

sub randomize {
    my ($p, $size, $swap, $key);
    $p = $_[0];

    $size = $#$p;
    for (0..($size-1)) {
        $swap = int rand($size - $_ + 1) + $_;
        $key = $p->[$_];
        $p->[$_] = $p->[$swap];
        $p->[$swap] = $key;
    }
}

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In reply to Re: How to not print the same random number by TedPride
in thread How to not print the same random number by Anonymous Monk

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