To display the previous and current run level, use the runlevel command, for example:
# runlevel
N 5
If there is no previous run level, N
is displayed. In this example,
the current run level is 5.
The who -r command also displays the current run level, for example:
# who -r
run-level 5 2013-03-15 09:24
For more information, see the runlevel(8)
and
who(1)
manual pages.