It's a nice trick to download your youtube videos using terminal. You don't need to buffer the full video. Follow these simple steps:
- Open Terminal.
- Write command "sudo apt-get install youtube-dl" with out quotes. It will install the youtube-dl package.
- After installing, write command for downloading the video:
youtube-dl URL_OF_YOUTUBE_VIDEO
For e.g. youtube-dl http://www.youtube.com/watch?v=lG_baNiVgUU - Video will get save in your home/user directory, like if your user name is abc, video will be save in home/abc directory.