| Front | Back |
| Used to switch users in a shell | su |
| Stop a running process | kill |
| Ubuntu package manager | apt-get |
| Sets permissions of files or directories | chmod |
| Copy a file or directory | cp |
| Lists processes | ps |
| Sets the owner of files or directories | chown |
| Move a file | mv |
| Delete a file or directory | rm |
| Change directories | cd |
| Turn off or power off | shutdown |
| Get the current working directory of a shell | pwd |
| List contents of a directory | ls |
| Used to run subcommands as root (admin) | sudo |
| Set a user's password | passwd |
| Configure wireless networking settings | iwconfig |
| Searches a file or input for particular characters | grep |
| Configure network settings | ifconfig |
| Text editor that is infamous for being impossible to exit | vi |