I'd use the List::Util module. 
use List::Util qw(shuffle);

my $n = 10;  # use $ARGV[0] or whatever to set $n

print join " ", shuffle(1 .. $n);

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In reply to Re: How can I print all the numbers from 1 to n in random order? by ChrisS
in thread How can I print all the numbers from 1 to n in random order? by vroom

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