What is ClipGrab?ClipGrab is a free software for downloading and converting online videos from many sites like YouTube or Vimeo.
ClipGrab can download from the following sites: YouTube, Clipfish, Collegehumor, Dailymotion, MyVideo, MySpass, Sevenload, Tudou, Vimeo.
Downloaded videos can be converted to the following file formats: WMV, MPEG4, OGG Theora, MP3 (audio only), OGG Vorbis (audio only).
What else can ClipGrab do?ClipGrab isn’t limited to the sites listed above, because many more sites are supported "unofficially" through the automatic site-recognition of ClipGrab
By the way, ClipGrab can also download HD videos from sites that have support for high definition (e.g. YouTube or Vimeo).
sudo add-apt-repository ppa:clipgrab-team/ppa
sudo apt-get update
sudo apt-get install clipgrab