The requirements are listed in the INSTALL file. There are piles of
differences between the new C version and the old perl version,
including a different config file syntax to let you more easily batch
common input sets through the same set of matches. I'll publish a
complete feature list when I get around to it, which isn't right now.
The tarball comes with a sample grok.conf that shows you a a few
different things you can do with the new version.
To run it, once you've built it, you must have a 'grok.conf' in the
same directory from which you are running the 'grok' binary.
Please send any questions you have to grok-...@googlegroups.com.
Download:
http://semicomplete.googlecode.com/files/grok-beta-20081228.tar.gz
-Jordan