I want to install the latest version of youtube-dl for Linux, the one that comes in the apt repository is horribly outdated and often doesn't work, so here's how you do it:
This will download the files needed..
sudo curl -L https://yt-dl.org/downloads/latest/youtube-dl -o /usr/local/bin/youtube-dl
And this will set it up so it can be executed..
sudo chmod a+rx /usr/local/bin/youtube-dl
Now we can run it:
We can update it also if there are some videos that give errors, which is a pretty common cause for an update:
And we're done :)