clive is a command line tool for extracting videos from Youtube,
Google Video, Dailymotion, Guba (free), Stage6, Metacafe, LastFm,
Sevenload websites.
clive is written in Python and is cross-platform.

Main features:

    - Proxy support; option and http_proxy environment setting
    - Youtube log-in support with flagged-content override
    - High/low-quality support where applicable (e.g. Youtube)
    - Chaining with a 3rd party player software for playing
    - Chaining with ffmpeg for subsequent re-encoding
    - URL caching; re-fetch video page only when necessary
    - Gzip compressed video page data transfers
    - Integration with X clipboard (with xclip)
    - RSS/Atom parsing with video selection interface
    - Continue partially downloaded files
    - Recall last URL batch
    - Supports UNIX pipes
    - URL batch support

WWW:	http://clive.sourceforge.net/