youtube-dl is a free and open source command line program which let us to download videos from YouTube and other online video service. youtube-dl does not come with GUI, but its pretty easy to use. The new version of youtube-dl 2014-05-05 is now available for download. youtube-dl supports various “normal” website and also some adult websites. You can read more about youtube-dl from the official website. youtube-dl is available for Windows and Linux. There is no special DEB or RPM binary of youtube-dl. Installing youtube-dl on Linux is pretty simple.
The following command will help you to download and install the latest youtube-dl 2014-05-05 on Linux
sudo wget https://yt-dl.org/downloads/2014.05.05/youtube-dl -o /usr/local/bin/youtube-dl
sudo chmod +x /usr/local/bin/youtube-dl
You can now use youtube-dl to download video from the internet. For example, I want to download a YouTube video using youtube-dl