| id | Displays the system identification of a specified user |
| logout | Stops all processes on a port |
| passwd | Changes a user's password |
| reboot | Restarts the system |
| rlogin | Connects a local host with a remote host |
| shutdown | Ends system operation |
| su | Changes the user ID associated with a system |
| telnet | Connects the local host with a remote host, using the Telnet interface |
| who | Identifies the users currently logged in |
| whoami | Displays your login name |