Common Ikm

    Print the monitor's options and the available reactors list.

    Enables the *reactor*. See **-h** for a list of available reactors.

    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.

    Trace monitor's events and error.

    Print debug messages.