Suggestions on Testing for Packages

[Brian E. Seppanen]

Has anyone come up with a method they would be willing to describe or 
share on how I can use cfengine to determine if a package is installed 
on a debian host with dpkg, or solaris with pkginfo?    Eventually I'm going to 
have 
to figure out how to do this, and was wondering how others have worked on 
this?   I have to check for packages on a regular basis.

Thanks for the help.

Brian Seppanen
seppy@chartermi.net
608.826.1464