Task $3.$ Add the user to a secondary group

A couple of months later, this employee's role at the organization has changed, and they are working in both the Research and the Sales departments.

In this task, you must add researcher$9$ to a secondary group $($sales$\_$team$).$ Their primary group is still research team.

Use the usermod command with the $-$a and $-$G options to add researcher$9$ to the sales team group as a secondary group.

Note: Options for Linux commands are case$-$sensitive$,$ so make sure you use a lowercase $-$a and an uppercase $-$G

Click Check my progress to verify that you have completed this task correctly