download youtube playlist using youtube-dl code example

Example 1: downloading youtube playlists using youtube-dl in highest quality

youtube-dl -f 22 'http://www.youtube.com/watch?v=P9pzm5b6FFY'

Example 2: youtube-dl playlist download

youtube-dl -i -f mp4 --yes-playlist 'https://www.youtube.com/watch?v=7Vy8970q0Xc&list=PLwJ2VKmefmxpUJEGB1ff6yUZ5Zd7Gegn2'