1st May 2020
youtube-dl is a set of Python scripts for downloading videos from YouTube, Twitter, Vimeo, and many other sites, see for example the list of supported sites. This is a handy tool if you want to watch videos or listen to music on your smartphone: Download them with youtube-dl and store them on your smartphone. Also see Youtube video to mp3.
$ youtube-dl https://youtu.be/26QTzeOV8Gs [ youtube ] 26QTzeOV8Gs: Downloading webpage ERROR: unable to download video data: HTTP Error 403: Forbidden
The following command did the trick:
$ youtube-dl --rm-cache-dir Removing cache dir /home/klm/.cache/youtube-dl ...