Write a prompt override program

A prompt override program needs to be passed certain information to return current values when a command is prompted.

• Parameters passed to the prompt override program
  The prompt override program is passed several parameters.
• Information returned from the prompt override program
  Based on the values passed, the prompt override program retrieves the current values for the parameters that are not key parameters.
• Allow for errors in a prompt override program
  Your prompt override program should include error handling.