Simple ruby script to download pdf files and save it to a folder

download_pdf_files_and_save_them

require 'open-uri'
require 'yaml'

config = YAML.load_file("#{ARGV[0]}")

(1..14).each do |lecture_number|

  File.open("#{config['folder_to_save']}/lecture_#{lecture_number}.pdf", "wb") do |file|

    filename = config['filename'].gsub('?lecture_number?', lecture_number.to_s)
    file.write open("#{config['path']}/#{filename}").read
  end
end