Linux run levels

Linux run levels

0 – halt (shutdown pc)
1 – Single user mode
2 – Multiuser
3 – Full multiuser mode
4 – unused
5 – X11 (Graphical)
6 – reboot

Reference: http://en.wikipedia.org/wiki/Runlevel http://www.debian-administration.org/articles/212

To check the current run level

who -r

To change the run level

su
init 1

To view run level config file

cat /etct/inittab