某女性時計の画像ダウンロードスクリプト ref: http://qiita.com/items/6940fa137d261aa1be7c

get_tokei_file.rb

require 'open-uri'


def to_date(date)
  if date.to_s.length < 2
    "0" + date.to_s
  else
    date.to_s
  end
end

dirname = 'img/'

0.step 23, 1 do |hour|
  0.step 59, 1 do |min|
    hour = to_date(hour)
    min = to_date(min)

    open(dirname + hour + min + "jp.jpg", 'wb') do |output|
      open("http://www.bijint.com/jp/tokei_images/#{hour + min}.jpg",
           "Referer" => "http://www.bijint.com/jp/") do |img|
        output.write(img.read)
      end
    end
  end
end