Get cpf numbers

get_cpfs.rb

require "watir-webdriver"                                                                                                                                                                                    
 
b = Watir::Browser.new
b.goto "http://www.geradordecpf.org/"

arr = Array.new

5000.times do |i|
  b.button(:value => "Gerar").click
  arr.push(b.text_field(:id => "numero").value)
  puts "#{i} done"
end

file = File.open("cpfs","a") { |f| arr.each {|e| f.write e.to_s + "\n" } }
 
b.close
puts "It's done :)"