Tutsplus lesson scrapper (save in Chrome's Dev tools as a snippet)

scrapper.js

// run from the index page of the course

(function () {
	
	var urls = [],
		videos = [];

	// get lesson urls
	$('.lesson-index__lesson-link').each( function () {
		urls.push( $(this).attr('href') );
	});

	// grab videos by injecting an iframe
	function get_video(url, cnt) {
			
		var $frm =  $('<iframe/>')
		.attr('src', url)
		.on('load', function () { // when iframe loads
			
			var title = $(this).contents().find('.breadcrumbs-bar__list li').last().text(),
				src = $(this).contents().find('video').find('source').attr('src');
			
			$(this).remove(); // kill iframe

			if ( (! title || ! src) && cnt++ < 4) { // re-try 3 times

				console.log('#--> Retry '+ cnt);
				setTimeout( function () { get_video(url, cnt); }, 250 * cnt); // retry after 0.5, 0.75 and 1sec 
			
			} else { // if we've got the video data (or failed 3 times)

				videos.push("wget -O '"+ title.replace("'", '') +".mp4' "+ src);

				if (urls.length > 0) { // if more lessons
					get_video(urls.shift(), 1); // get next

				} else { // we are done
					$.each(videos, function (i,v) { console.log(v); });
					console.log("echo 'Done.'");
				}
			} 
		});
		
		// inject iframe
		$frm.appendTo( $('body') );
	}
	
	get_video(urls.shift(), 1);

})();