Okay, time for a lab.
Now, before you are going to do this lab, you need to make sure that you've done the lesson 10 lab.
That's a requirement. It's a dependency. This lab is undoable without so first create the directories Data Sales and Data Account.
Members of the group Sales should be able to read and write vals in data sils.
Members of the group account should be able to read and write in data Account. No other users should
have access to these directories and users will only be allowed to delete files that they have created themselves.
But user Anna is sales manager and should be able to manage all of the sales files. Good luck.