#!/usr/bin/env ruby
require 'net/http'
begin
  require 'clipboard'
rescue LoadError
end
len = ARGV[0] || 15
response = Net::HTTP.get URI.parse("http://www.random.org/strings/?num=1&len=#{len}&digits=on&upperalpha=on&loweralpha=on&unique=on&format=plain&rnd=new")
Clipboard.copy response if Clipboard
puts response