| **-h**, **--help** | |
| Print the monitor's options and the available reactors list. | |
| **-r**, **--reactor** *reactor* | |
| Enables the *reactor*. See **-h** for a list of available reactors. | |
| **-s**, **--self** | |
| When tracing (**-t**), also print the events that happened during the **rv** | |
| command itself. If the **rv** command itself generates too many events, | |
| the tool might get busy processing its own events only. | |
| **-t**, **--trace** | |
| Trace monitor's events and error. | |
| **-v**, **--verbose** | |
| Print debug messages. |