Hi, I use the following method to generate a random string:

    def gen_token(len=6)
      rand(36**len).to_s(36)
    end

It's the most efficiente way I've found. However even if the parameter
is 6, the method sometimes returns a string of lenght 5, 4...

Is there an efficient way to a random string with fixed length? (I
don't want to check the resulting length and then append some other
byte....).

Thanks a lot.

-- 
Iaki Baz Castillo
<ibc / aliax.net>