Download coursera videos from shell

download-coursera-videos-shell.md

Here is how I manage to download all videos of specific course from http://coursera.org. Even counrsera-downloader Chrome extension sucks. I would rather do it from command-line.

Requirements

• nodejs
• shelljs (npm install -g shelljs)

Instructions

1. The following script to be run in 'all videos' page of http://coursera.org course, would copy all video links with their titles as JSON to clipboard.

   var videos = Array.prototype.slice.call(document.querySelectorAll('a[title="Video (MP4)"]'),0);
   var out = vidoes.map(function(video) { 
           return {link:video.href, title: video.querySelector('div').innerHTML.replace(/ /g, '_') + '.mp4'};
   });
   copy(out);

   Then save the clipboard data as videos.json file.

2. Export http://coursera.org cookies after logging in using cookietxt-export chrome extension.

3. Download all videos in videos.json having the cookies in cookies.txt with the following script:

   require('shelljs/global');
   var videos = require('./videos.json');
   videos.forEach(function(video) {
       console.log('downloading ',video.link);
       exec('wget --load-cookies cookies.txt ' + video.link+' -O "' + video.title + '"');
   });