=> Instalação:
apt-get install youtube-dl lame python3-pip

=> Se não funcionar ou der erro de parâmetros:
wget https://yt-dl.org/downloads/latest/youtube-dl -O /usr/local/bin/youtube-dl

chmod a+rx /usr/local/bin/youtube-dl

Comandos:
Para ver a lista opções de resolução do vídeo:
youtube-dl -F <vídeo>

Para baixar:
youtube-dl -f <nº> <vídeo>

youtube-dl -f best  <vídeo> (escolhe a melhor qualidade de vídeo e áudio)

Para baixar playlists:
https://sempreupdate.com.br/como-baixar-uma-playlist-do-youtube-usando-o-youtube-dl/


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Install youtube-dl on Raspberry Pi

The youtube-dl is a command line tool that allows to download videos from YouTube and other websites. The list of all the supported websites can be found in official website. The youtube-dl is a cross-platform tool which requires the Python interpreter.

This tutorial shows how to install youtube-dl on Raspberry Pi.
Install youtube-dl

Connect to Raspberry Pi via SSH. Use Curl tool to download youtube-dl to the /usr/local/bin directory. Then add read and execute permissions for user, group, and others.
sudo curl -L https://yt-dl.org/downloads/latest/youtube-dl -o /usr/local/bin/youtube-dl

sudo chmod a+rx /usr/local/bin/youtube-dl

The youtube-dl is available for all users as youtube-dl command. We can check version:
youtube-dl --version

We can run the following command to update youtube-dl to the latest version:
sudo youtube-dl -U

Testing youtube-dl
Now we can test. To download the video from website, use this command:
youtube-dl <VIDEO_URL>

The <VIDEO_URL> is a video URL that you want to download. For example:
youtube-dl https://www.youtube.com/watch?v=C0DPdy98e4c

In most cases youtube-dl works fine without external dependencies. However, if you want to convert video/audio you will need to install FFmpeg. You can read post how to install it.

You can use -x option to convert video files to audio only files. It requires FFmpeg.
youtube-dl -x https://www.youtube.com/watch?v=C0DPdy98e4c

Uninstall youtube-dl
If you decided to remove youtube-dl then execute the following command:
sudo rm -rf /usr/local/bin/youtube-dl