Linux in a Nutshell, 6th Edition

Name

telinit

Synopsis

telinit [option] [runlevel]

System administration command. Signal init to change the system’s runlevel. telinit is actually just a link to init, the ancestor of all processes.

Option

-t seconds

Send SIGKILL seconds after SIGTERM. Default is 20.

Runlevels

The default runlevels vary from distribution to distribution, but these are standard:

0

Halt the system.

1, s, S

Single user.

6

Reboot the system.

a, b, c

Process only entries in /etc/inittab that are marked with runlevel a, b, or c.

q, Q

Reread /etc/inittab.

Check the /etc/inittab file for runlevels on your system.