gistfile1.rb

require "open-uri"

[
  "http://pastebin.com/raw.php?i=Kc9ng18h",
  "http://pastebin.com/raw.php?i=vCMndK2L",
  "http://pastebin.com/raw.php?i=JdQkuYwG",
  "http://pastebin.com/raw.php?i=fw43srjY"
].each do |url|
  open(url).each_line do |line|
    name, password = line.chomp.split(/:/)
    if name == ARGV[0]
      puts password
      exit
    end
  end
end