walker.rb

#!/bin/env ruby
#

require 'rubygems'
require 'capybara'
require 'capybara/dsl'
require 'capybara-webkit'

class CapybaraWalker
  include Capybara
  def initialize(url)

    Capybara.default_driver = :webkit
    Capybara.run_server = false
    Capybara.app_host = url

    Capybara.visit(url)
    Capybara.fill_in('q', :with => 'kitten pictures')
    Capybara.click_button("I'm Feeling Lucky")
    puts Capybara.current_url
  end
end

walker = CapybaraWalker.new('http://www.google.com/')