Download NPTEL Lectures 2

This is an update on the previous post on the same topic.

Given how unreliable youtube-dl is these days for downloading youtube videos, it’s better to directly download course videos from NPTEL’s site.

Here’s how to download the course videos for this course:

• Manually figure out the URLs for each video. Looking at the urls, I realized the links are based on week (mod), while lectures go through 01-52.

$Url="https://archive.nptel.ac.in/content/storage2/117/106/117106148/MP4"
$Name=@(
    'mod01lec01',
    'mod01lec02',
    'mod01lec03',
    'mod01lec04',
    'mod01lec05',
    'mod01lec06',
    'mod01lec07',
    'mod02lec08',
    'mod02lec09',
    'mod02lec10',
    'mod02lec11',
    'mod02lec12',
    'mod02lec13',
    'mod03lec14',
    'mod03lec15',
    'mod03lec16',
    'mod03lec17',
    'mod03lec18',
    'mod03lec19',
    'mod03lec20',
    'mod03lec21',
    'mod03lec22',
    'mod04lec23',
    'mod04lec24',
    'mod04lec25',
    'mod04lec26',
    'mod05lec27',
    'mod05lec28',
    'mod05lec29',
    'mod05lec30',
    'mod06lec31',
    'mod06lec32',
    'mod06lec33',
    'mod06lec34',
    'mod06lec35',
    'mod06lec36',
    'mod07lec37',
    'mod07lec38',
    'mod07lec39',
    'mod07lec40',
    'mod07lec41',
    'mod08lec42',
    'mod08lec43',
    'mod08lec44',
    'mod08lec45',
    'mod08lec46',
    'mod09lec47',
    'mod09lec48',
    'mod09lec49',
    'mod09lec50'
    'mod09lec51',
    'mod09lec52'
)

• Use curl/Invoke-WebRequest to download the videos. (I’ve found curl to be quicker.)

$Name | %{iwr "$Url/$_.mp4" -OutFile "$_.mp4" -Verbose}
$Name | %{curl "$Url/$_.mp4" -o "$_.mp4"}