SIMULATION - Create a Shared Directory. Create a shared directory /home/admins, make it has the following characteristics: /home/admins belongs to group adminuser This directory can be read and written by members of group adminuser Any files created in /home/ admin, group automatically set as adminuser. 

See explanation below.

mkdir /home/admins chgrp -R adminuser /home/admins chmodg+w /home/admins chmodg+s /home/admins