youtube-dl on Mac

# Download audio files from youtube on Mac

1. brew install youtube-dl ffmpeg
2. youtube-dl -q -x --audio-format mp3 --no-mtime --prefer-ffmpeg --hls-prefer-ffmpeg --external-downloader aria2c --external-downloader-args "--quiet --file-allocation=falloc --max-connection-per-server=4" -o "%(title)s.%(ext)s" link_to_video_on_youtube