What for? Why? Usage? Rationale? Random, sequential, unique, un-guessable?????? This takes only a couple of seconds.... 

# usage perl $0 > out.txt
$a = 'blah';
printf "%09s\n", $a++ for 1..1_500_000;

[download]

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: Generating alphanumeric codes by tachyon
in thread Generating alphanumeric codes by Gorby

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