timothy@AMDx6:~$ sudo nano /etc/inittab
[sudo] password for timothy:
timothy is not in the sudoers file.  This incident will be reported.
timothy@AMDx6:~$ su
Password:
root@AMDx6:/home/timothy# visudo
visudo: /etc/sudoers.tmp unchanged
root@AMDx6:/home/timothy# sudo adduser timothy
adduser: The user `timothy' already exists.
root@AMDx6:/home/timothy# exit
exit
timothy@AMDx6:~$ sudo apt-get update
[sudo] password for timothy:
timothy is not in the sudoers file.  This incident will be reported.
timothy@AMDx6:~$