Control Access and Scope of Variables and Other Items

You want to control how you define (or interact with) the visibility of variables, aliases, functions, and drives.

Access Environment Variables

You want to use an environment variable (such as the system path, or current user’s name) in your script or interactive read more

You want to manage the detailed debug, verbose, and progress output generated by cmdlets and scripts.read more

After working in the shell for a while, you want to invoke commands from your history, view your command history, and save your command history.