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System Management Concepts: Operating System and Devices

Chapter 10. System Environment

The system environment is primarily the set of variables that define or control certain aspects of process execution. They are set or reset each time a shell is started. From the system-management point of view, it is important to ensure the user is set up with the correct values at log in. Most of these variables are set during system initialization. Their definitions are read from the /etc/profile file or set by default.

Topics discussed in this chapter are:


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