determine the runlevel in solaris

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.

Example 6-1 Determining a System’s Run Level

This example displays information about a system’s current run level and previous run levels.

$ who -r
 .    run-level 3  Dec 13 10:10  3  0 S
$

Output of `who` `-r` command	Description
`run-level 3`	Identifies the current run level
`Dec 13 10:10`	Identifies the date of last run level change
`3`	Also identifies the current run level
`0`	Identifies the number of times the system has been at this run level since the last reboot
`S`	Identifies the previous run level