Script to download Coursera lecture notes

download_coursera_notes.rb

require 'restclient'

# Create the list from the course page by running the following JavaScript
# snippet, and copying and paste the results in here. I _think_ the Content-Type
# of the pdfs prevents them from being downloaded directly in JavaScript.

# $('.course-lectures-list ul:eq(2) a[href$="pdf"]').map(function () { return $(this).attr('href') })

urls = ["https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Flecture3.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Ffunctions.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Fscopingrules.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Foptimization.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Flapply.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Fapply.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Ftapply.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Fmapply.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Fdebugging1.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Fdebugging2.pdf",
        "https://d19vezwu8eufl6.cloudfront.net/compdata/slides%2Fdebugging3.pdf"]

urls.each do |url|
  fn = url.split('/')[-1].sub('%2F', '_')
  puts "Downloading #{url}"
  RestClient.get(url) do |resp|
    File.open(fn, "w") { |f| f.write(resp) }
  end
end