Since CUBRID Manager is implemented in Java, it requires Java Runtime Environment or Java Development Kit version 1.6 or later.
CUBRID Manager can be installed either by simply downloading CM binary file or using apt-get or yum repositories. Alternatively, you can build CM yourself.
Once downloaded, all you need to do is launch the installer (.exe) on Windows or untar the archive on Linux. That's all!
You can now follow the tutorials created for CUBRID Manager.