youtube-dl

PREAMBLE
Tutorial expresses the author's subjective ideas and conform to AAL license.


Description
Used for downloading video & audio files from YouTube and many many more sites.


Intro
Download/Install instruction you will find here, and I think it's beyond the scope of the article. Every distributive have it's own way how to do it. GUI version take from that place.


Next Level

YOUTUBE
To select quality of the video which you choose try -F option.

$ youtube-dl -F https://www.youtube.com/watch?v=FEm8PZ_lUh8

To download selected quality clip use -f

$ youtube-dl -f https://www.youtube.com/watch?v=FEm8PZ_lUh8

To convert your video clip to audio only file use -x or --extract-audio with --audio-format you choose: aac, flac, mp3, m4a, opus, vorbis, wav and/or --audio-quality 0 to 9 (default is 5)

$ youtube-dl -x --audio-format vorbis --audio-quality 0 https://www.youtube.com/watch?v=UjCDWCeHCzY

VK or VKONTAKTE
Similar to youtube, but with some addings.

$ youtube-dl -F https://vk.com/video-28340077_171874843 --username yourusername --password yourpassword

$ youtube-dl -f hls-839 https://vk.com/video-28340077_171874843 --username yourusername --password yourpassword

Last thoughts
Be shure that I will update tutorial in the future. So, stay on tune. And, in case it was useful, share please with your fellows or comment something regarded the subject.
For donations use that link

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