Installing and Configuring Environment Modules on CentOS 5

Here a short tutorial on how to install and configure Environmental Modules on CentOS. See
Installing and Configuring Environment Modules on CentOS 5 for more details.
In the short tutorial,  I have document steps how to

1. Tools of managing User Environment in Linux
2. Unpacking, Installing and Configure Environment Modules. The Environment Modules Package can be taken from Environment Modules Project
3. Creating a sample Module File for Intel Compilers