A bash script that downloads youtube videos from 1080p to 4K, 320kbps audio mp3 & even any playlist both in audio & video version.

youtube.sh

#!/bin/bash

# This bash script downloads youtube videos, playlists from 4K to 1080p & even extracts to mp3 using youtube-dl.
# This script also depends on 'ffmpeg' or 'avconv' so either of them needs to be installed. 
# To run this script:
# 1. Simply download this gist and save it as youtube.sh
# 2. In bash type "bash youtube.sh" without inverted comma

function main_menu() {
clear
echo ""
echo -e "Download youtube video, playlists extract them to your like, just in your browser."
echo "" 
echo -e "1. Download Video"
echo -e "2. Download Audio"
echo -e "3. Download Playlist [Video Version]"
echo -e "4. Download Playlist [Audio Version]"
echo -e "5. Just Quit"
echo -e ""
echo -e "Enter a number to start, eg: enter 1 to download a video"
echo -e ""
echo -e "Enter any magical number: "
read choice
case $choice in
1) video_only ;;
2) audio_only ;;
3) video_playlist ;;
4) audio_playlist ;;
5) close ;;

*)
clear
echo ""
echo -e "Your choice \"$choice\" is kinda invalid."
echo ""
sleep 3;;
esac
}

function video_only(){
	clear
	printf "%s\n" "" "Paste a youtube video link: " ""
	read link
	youtube-dl -F "$link"
	printf "%s\n" "" "Enter your desired video format & resolution from the list above" ""
	read list
	clear
	youtube-dl --continue --format "$list"+bestaudio[ext=m4a] --output "/home/$USER/Downloads/Youtubes/%(title)s.%(ext)s" --merge-output-format mp4 "$link"
	sleep 3
	main_menu
}

function audio_only(){
	clear
	printf "%s\n" "" "Paste a youtube video link: " ""
	read link
	clear
	youtube-dl --continue --extract-audio --audio-format "mp3" --audio-quality 0 --output "/home/$USER/Downloads/Youtubes/%(title)s.%(ext)s" "$link"
	sleep 3
	main_menu
}

function audio_playlist(){
	clear
	printf "%s\n" "" "Paste the link of a youtube playlist: " ""
	read link
	clear
	youtube-dl --continue --yes-playlist --ignore-errors --extract-audio --audio-format "mp3" --audio-quality 0 --output "/home/$USER/Downloads/Youtubes/%(title)s.%(ext)s" "$link"
	sleep 3
	main_menu
}

function video_playlist(){
	clear
	printf "%s\n" "" "Paste the link of a youtube playlist: " ""
	read link
	clear
	youtube-dl --continue --yes-playlist --format bestvideo[height=1080]+bestaudio[ext=m4a] --ignore-errors --output "/home/$USER/Downloads/Youtubes/%(title)s.%(ext)s" "$link"
	sleep 3
	main_menu
}

function close(){
	clear
	printf "%s\n" "" "Always happy to help you, see you soon." ""
	printf "%s\n" "" "Made in Nepal by sidbelbase. " ""
	sleep 4
	clear
	exit 0
}

while :
do
main_menu
done