Pass it a length and get a somewhat random string. Not recommended for sessioning, (use MD5, SHA1, etc for that). I just needed 4 digit somewhat random strings so pulling in MD5 seemed overkill.
sub random_string {
  my $length = shift || 2;
  my @chars = ('a'..'z','A'..'Z',0..9);
  join ('',map{ $chars[ rand() * @chars  ] } (1..$length));
}

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In reply to Generate (somewhat) Random Strings by shotgunefx

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