https://gist.github.com/2641479 の速度重視型

gistfile1.rb

require "open-uri"

lookfor = Regexp.new("(?:#{ARGV.map{|s| Regexp.escape(s)}.join('|')}).*:", Regexp::IGNORECASE)

%w(
	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|
		if line =~ lookfor
			puts line.chomp
		end
	end
end