http://killmebaby.tv/special_icon.html にあるキルミーベイベーのアイコンを取得し保存するスクリプト

killmeIcon.rb

require 'open-uri'
require 'nokogiri'

# Author:TakkuMattsu
# thanks:
# http://somethingpg.hatenablog.com/entry/20120603/1338715064
# https://gist.github.com/ejo090/4480809f0a683255803e
# 

url = 'http://killmebaby.tv/special_icon.html'

charset = nil
html = open(url) do |f|
	charset = f.charset
	f.read
end

page = Nokogiri::HTML.parse(html, nil, charset)

ary = Array.new

page.css('img').each do |link|
	if /http:\/\/aka\.saintpillia\.com\/killme\/icon\/[0-9_-]{3,}\.png/ =~ link[:src]
		ary.push(link[:src])
	end
end

ary.each_with_index do |url,index|
	filename = "%04d.png"%index
	dirname = Dir.pwd + "/" + filename
	open(dirname, 'wb') do |file|
		open(url) do |data|
			file.write(data.read)
		end
	end
end