While most scripts are designed to run automatically, you will frequently find it useful to have your scripts interact with the user.
The best way to get input from your user is through the arguments and parameters to your script or function. This lets your users to run your script without having to be there as it runs!
If your script greatly benefits from (or requires) an interactive experience, PowerShell offers a range of possibilities. This might be simply waiting for a keypress, prompting for input, or displaying a richer choicebased prompt.
User input isn’t the only aspect of interaction though. In addition to its input facilities, PowerShell supports output as well—from displaying simple text strings to much more detailed progress reporting and interaction with UI frameworks.