Display run level information by using the who -r command.
$ who -r |
Use the who -r command to determine a system's current run level for any level, except run level 0.
This example displays information a system's current run level and information about previous run levels.
$ who -r . run-level 31 Dec 13 10:102 33 04 S5 $ |
Identifies the current run level
Identifies the date of last run level change
Also identifies the current run level
Identifies the number of times the system has been at this run level since the last reboot
Identifies the previous run level