i found this complet documentation
Snort Startup Scripts
These scripts are intended to get you started with the startup, reload, and shutdown of Snort on the OSes listed below.
Snort Deployment Guides
The following deployment guides have been contributed by members of the Snort Community for your use
Snort Related Whitepapers
The following Whitepapers have been written by Sourcefire employees and may help with your Snort deployment.
http://security4you.net/blog/complete-snort-documentation-guide
Best Regards