| halt | Shut down all services and halt the system |
| poweroff | Shut down all services and power off the system |
| shutdown | Shut down the system normally |
| rescue | Single-user (root) mode for maintenance and recovery functions. It mounts all file-system but does not start any networking related service or function. |
| multi-user | Multi-user command line mode for regular tasks. It starts all essential and custom services and provides the CLI prompt for login and work. |
| graphical | Same as the multi-user.target but also includes GUI. A user can use the graphical desktop environment to login and work or can use regular command line interface. |
| reboot | Reboot the system normally. |
| default | Default target to boot the system. Usually set either to multi-user.target or graphical.target. |
| emergency | Start an emergency shell and mount only root file-system. Other file-system and networking remain disabled. |
| hibernate | Save the running state of the system to the hard disk and power off the system. When the system is power on again, the systemd restores the saved state. |
| suspend | Same as the hibernate except the system state is saved in the memory and power to the memory is not turned off. |