Download all Railscast Pro and regular episodes (if you have a subscription)

gistfile1.rb

#!/usr/bin/env ruby
require 'rss'
require 'open-uri'
require 'net/http'

# Your subscription ID
sub_id = "xxx"
url = "http://railscasts.com/subscriptions/#{sub_id}/episodes.rss"

puts "Reading RSS"

open(url) do |rss|
  feed = RSS::Parser.parse(rss)
  puts "Title: #{feed.channel.title}"
  feed.items.each do |item|
    
    puts "Item: #{item.title}"
    url = item.enclosure.url
    filename = File.basename(url)

    if File.exists?(filename)
      puts "Existing file: #{filename}"
    else
      puts "Downloading: #{filename}"
      open(filename, 'wb') do |file|
        file << open(url).read
      end
    end

  end
end