You want to change the owner of a file named /var/opt/confidential from alice (who is a member of the sales group) to john (who is a member of the engineers group). You want to change both user and group owners. Which of the following commands should you use?
A)chown alice john /var/opt/confidential
B)chown -u "john" -g "engineers" /var/opt/confidential
C)chown john /var/opt/confidential
D)chown john.engineers /var/opt/confidential

Question

Quizplus · Accepted Answer

You should use the chown john.engineers /var/opt/confidential command to change the owner of a file named /var/opt/confidential from alice to john.
Key Takeaway: Entering chown john.engineers /var/opt/confidential will change the user and group owners of the confidential file to john and engineers. The chown command is used to change the owner of a file. In most implementations, it can only be executed by the super user. Unprivileged users who wish to change the group of a file that they own may use chgrp.

You Want to Change the Owner of a File Named