Online Tutorial for Cobra 3.1
This tutorial consists of eight parts and contains exercises to help you practice some of the material. Try to avoid looking at the answers provided until you've tried to solve the problems yourself and either succeed or get hopelessly stuck. You may well end up with better solutions than are provided here.
The tutorial assumes that you have installed Cobra Version 3.1 or later.
Cobra Manual Pages etc.
Cobra Source Code etc.