Command line Flickr batch download script

flickr-dl.rb

#!/usr/bin/env ruby

require 'nokogiri'
require 'open-uri'

ARGF.each_line do |line|
  line.chomp!
	save_file = line.split('/')[-2..-1].join('_') + '.jpg'
	doc = Nokogiri::HTML(open(line + "/sizes/o/"))

	doc.xpath('//div[@id="allsizes-photo"]/img/@src').each do |link|
		puts "#{save_file}: #{line} => #{link}"
		unless File.exist?(save_file)
			`wget -O #{save_file} -c #{link}`
		end
	end
end