Simple bash function to pull down videos and audio tracks from YouTube playlists.

get-tunes.sh

get-tunes(){
    local usage="get-tunes %PLAYLIST_OR_VIDEO_URL% [audio-only | video-only]";
    local url="$1";
    local option="$2";
    local prefix="";
    if [ -f "/usr/local/bin/youtube-dl" ]; then
        prefix="/usr/local/bin/";
    fi
    if [ -z "${url}" ]; then
        echo "Problem fetching track: Track URL not supplied";
        echo "$usage";
    elif [ -z "${option}" ]; then
        echo "Fetching audio & video...";
        eval "${prefix}youtube-dl --buffer-size 16K --keep-video --audio-format mp3 --extract-audio --embed-thumbnail --prefer-insecure --format mp4 --ignore-errors --output '%(title)s.%(ext)s' $1";
    elif [[ "$option" == "audio-only" ]]; then
        echo "Excluding video...";
        eval "${prefix}youtube-dl --buffer-size 16K --audio-format mp3 --extract-audio --embed-thumbnail --prefer-insecure --ignore-errors --output '%(title)s.%(ext)s' $1";
    elif [[ "$option" == "video-only" ]]; then
        echo "Excluding audio...";
        eval "${prefix}youtube-dl --buffer-size 16K --keep-video --prefer-insecure --format mp4 --ignore-errors --output '%(title)s.%(ext)s' $1";
    else
        echo "Problem fetching track: Unknown option supplied ($option)";
        echo "$usage";
    fi
}