Hallo Raudi!
folgendes steht zu deinem Problem im Perl-Cookbook.
Ich hoffe du kannst Englisch.
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2.7. Generating Random Numbers
Problem
You want to make random numbers in a given range, inclusive, such as when you randomly pick an array index, simulate rolling a die in a game of chance, or generate a random password.
Solution
Use Perl's rand function.
$random = int( rand( $Y-$X+1 ) ) + $X;
Discussion
This code generates and prints a random integer between 25 and 75, inclusive:
$random = int( rand(51)) + 25;
print "$random\n";
The rand function returns a fractional number, from (and including) 0 up to (but not including) its argument. We give it an argument of 51 to get a number that can be 0 or more, but never 51 or more. We take the integer portion of this to get a number from 0 to 50, inclusive (50.99999.... will be turned to 50 by int). We then add 25 to it, to get a number from 25 to 75, inclusive.
A common application of this is the random selection of an element from an array:
$elt = $array[ rand @array ];
And generating a random password from a sequence of characters:
@chars = ( "A" .. "Z", "a" .. "z", 0 .. 9, qw(! @ $ % ^ & *) );
$password = join("", @chars[ map { rand @chars } ( 1 .. 8 ) ]);
We use map to generate eight random indices into @chars, extract the corresponding characters with a slice, and join them together to form the random password. This isn't a good random number, though, as its security relies on the choice of seed, which is based on the time the program started. See Recipe 2.8 for a way to better seed your random number generator.
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Gruß Jaraz