What run level am I in?

Q: How can I find out what run level a system is in at the moment?

1. The runlevel command tells you what run level is running
2. The who -r command also tells you the run level

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2

firewall ~ # /sbin/runlevel
N 2

or

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firewall ~ # who -r
         run-level 2  2010-05-28 23:13