how do I do it in Ubuntu terminal? the new account is called "classAdmin"

please show step by step!

5) Please write a script that launches the calculator program with the newly created account. a. Please allow the program to wait 5 minutes within a loop. b. During looping, find and kill the PID using the cut command. c. Must redirect the errors and output into a single file. d. Provide the script and an image of the working program that shows that the account for slasssadmin is being used