download all the egon schiele paintings from http://www.doc.ic.ac.uk/~svb/Schiele/

egon-download.rb

require 'nokogiri'
require 'open-uri'

BASE_PATH = 'http://www.doc.ic.ac.uk/~svb/Schiele'

html_doc = Nokogiri::HTML(open(BASE_PATH) { |url| url.read })
html_doc.xpath('//td//a', 'align' => 'center').each do |image_element| 
  image_name = image_element.values.first
  next if File.file?(image_name)
  download_path = File.join(BASE_PATH, image_name)
  puts "Downloading image – #{download_path}\n"
  open(download_path) { |image| File.open(image_name, 'wb') { |file| file.puts(image.read) } }
end