The problem is to : develop a shell script which allow patty and mick( two login names) to execute a program
You need to provide more information in order to get a reasonable answer. We can try to figure out what you're asking by understanding what sorts of questions get asked in classes/books and giving you that answer but it might not help you if you're looking for a different result.
Carl
No homework allowed. See rules.
Agreed..thread closed.