telinit - Change SysV runlevel
telinit [OPTIONS...] {COMMAND}
telinit may be used to change the SysV system runlevel.
Since the concept of SysV runlevels is obsolete the runlevel requests will
be transparently translated into systemd unit activation requests.
The following options are understood:
--help
Print a short help text and exit.
--no-wall
Do not send wall message before
reboot/halt/power-off.
The following commands are understood:
0
Power-off the machine. This is translated into an
activation request for poweroff.target and is equivalent to systemctl
poweroff.
6
Reboot the machine. This is translated into an activation
request for reboot.target and is equivalent to systemctl reboot.
2, 3, 4, 5
Change the SysV runlevel. This is translated into an
activation request for runlevel2.target, runlevel3.target, ... and is
equivalent to systemctl isolate runlevel2.target, systemctl isolate
runlevel3.target, ...
1, s, S
Change into system rescue mode. This is translated into
an activation request for rescue.target and is equivalent to systemctl
rescue.
q, Q
Reload daemon configuration. This is equivalent to
systemctl daemon-reload.
u, U
Serialize state, reexecute daemon and deserialize state
again. This is equivalent to systemctl daemon-reexec.
On success, 0 is returned, a non-zero failure code otherwise.
This is a legacy command available for compatibility only. It
should not be used anymore, as the concept of runlevels is obsolete.