$ sudo apt-get update
$ sudo apt-get install dpsyco-cfengine 

dpsyco-cfengine is installed in your system.

Make ensure the dpsyco-cfengine package were installed using the commands given below,

$ sudo dpkg-query -l | grep dpsyco-cfengine *

You will get with dpsyco-cfengine package name, version, architecture and description in a table

dpsyco-cfengine package basic information: