安装 youtube-dl sudo curl -L https://yt-dl.org/downloads/latest/youtube-dl -o /usr/local/bin/youtube-dl sudo chmod a+rx /usr/local/bin/youtube-dl 安装 ffmpeg apt-get update -y apt-get install ffmpeg -y 下载 redbull 视频 youtube-dl https://www.redbull.com/int-en/episodes/la-dura-dura-reel-rock-s01-e01