Download a particular language's subtitles along with the video

Download videos from YouTube and other websites.
More information: <http://rg3.github.io/youtube-dl/>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

youtube-dl --sub-lang {{en}} --write-sub '{{https://www.youtube.com/watch?v=Mwa0_nE9H7A}}'

click the source code to copy install youtube-dl on any operating system with command-not-found.com