runlevel(8) - phpMan

RUNLEVEL(8) runlevel RUNLEVEL(8)

NAME
runlevel - Print previous and current SysV runlevel

SYNOPSIS
runlevel [options...]

DESCRIPTION
runlevel prints the previous and current SysV runlevel if they are known.

The two runlevel characters are separated by a single space character. If a runlevel
cannot be determined, N is printed instead. If neither can be determined, the word
"unknown" is printed.

Unless overridden in the environment, this will check the utmp database for recent
runlevel changes.

OPTIONS
The following option is understood:

--help
Print a short help text and exit.

EXIT STATUS
If one or both runlevels could be determined, 0 is returned, a non-zero failure code
otherwise.

ENVIRONMENT
$RUNLEVEL
If $RUNLEVEL is set, runlevel will print this value as current runlevel and ignore
utmp.

$PREVLEVEL
If $PREVLEVEL is set, runlevel will print this value as previous runlevel and ignore
utmp.

FILES
/var/run/utmp
The utmp database runlevel reads the previous and current runlevel from.

NOTES
This is a legacy command available for compatibility only. It should not be used anymore,
as the concept of runlevels is obsolete.