grake is a command-line tool for scanning web pages for embedded Youtube video link. As a scanning tool, grake is meant to complement other tool that would accept Youtube URL as its parameter, notably cclive.
Usage Example:
# general command line example grake [YOUTUBE URL]
# typical / normal use grake http://youtube.com/
#output as json (for programmatic consumption) grake --json http://youtube.com/
#tell cclive to download youtube urls from grake output grake http://youtube.com/ | cclive
This of course require the latest release of cclive in order for the download example to work.