Use youtube-dl to download new videos from channel [closed]

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I need to use youtube-dl to download new videos from a channel, but remember not to download them next time and only download videos that have not been downloaded yet. How can I do so?

Answer 1

Use the --download-archive option:

youtube-dl --download-archive ~/.mydownloads http://youtube.com/CHANNEL

The IDs of all downloaded videos will be recorded in the .mydownloads file, and these videos will not be downloaded again.