As the Linux Administrator for fast-growing company, you have been tasked with creating, modifying, and removing user accounts from the Linux server. The company has just hired 9 new employees to fill 3 newly designed departments. The departments that have been created are Engineering, Sales and IS. The server must be setup with the appropriate files, folders, users, groups and permissions to ensure a successful launch of the newly designed departments. Required:
a. Create a directory at the root (/) of the file system for each department. This name should reflect the department name that will use the directory.
b. Create a group for each department. This name should reflect the department name that the group will be assigned.
c. Create an administrative user for each of the departments.