For doing that, you have to install youtube downloader first.
For the installation use following command:
Step 1: Install python3-pip
sudo apt-get install python3-pip
Step 2: Install youtube downloader using python pip
sudo python3-pip install youtube-dl or you can install by this command too : sudo apt-get install youtube-dl
Step 3: Update youtube-dl
sudo youtube-dl -U
Now you can download by following command:
youtube-dl your-full-youtube-video-url
Advanced Options:
Check all available formats of the video:
youtube-dl -F your-full-youtube-video-url
Download your preferred format :
youtube-dl -f 22 your-full-youtube-video-url
Download a full playlist:
youtube-dl -i -f best ‘https://www.youtube.com/watch?v=8Hz9ZSYdc28&list=PLAwdSsIxR9swilApNXHgHLUp-_8JtzTyF’ –yes-playlist