An active fork of youtube-dl as youtube-dl is now inactive.

Install (or update):

sudo wget https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp -O /usr/local/bin/yt-dlp
sudo chmod a+rx /usr/local/bin/yt-dlp

The commands remain the same.

(via the shaarli of Orangina Rouge)