Sometimes you need to “save” some important content from YouTube, for example, if you need to make an offline presentation or your internet connection is slow maybe it’s a good idea to download the video before the presentation. Good idea, no?
There are some solution to this, but maybe this is the simples one (for me). With YouTube-dl you can download your videos from YouTube straight from your command line like this
youtube-dl ABCDEF_1234
Where ABCDEF_1234 is the “v” param of https://www.youtube.com/watch?v=ABCDEF_1234
(edit) Today this command doesn’t work with this URL https://www.youtube.com/watch?v=-GymG5y0Yt8. You can notice that the param start with a dash symbol (-), so t he program “think” that is a extra flag. To solve this, make sure that you are running the latest version, running:
youTube-dl -U
And then, pass the entire URL
youtube-dl "https://www.youtube.com/watch?v=-GymG5y0Yt8"
That’s all!