1. A system having at least a display and interface adapter, the system for customizing a computer environment in response to a change directory command, comprising: (a) a processor; (b) means for inputting a change directory command; (c) in response to the change directory command, means for detecting the current directory; (d) means for controlling the processor to search for an environment file on the current directory, wherein the environment file contains operating system commands; and (e) means for controlling the processor to execute the operating system commands stored in the environment file to reconfigure the operating system.