halt Will shutdown all services and then stop the computer with the message
"System Halted"
shutdown When used with a parameter(will tell the system how lont to wait before
shutting down and whether to reboot or halt)
ex: To halt the system in five minutes shutdown -h r
Ctrl+Alt+Del Executes a shutdown command immediately
telinit 0 Will halt the system (shutting down all services first)
telinit 6 Will reboot the system (shutting down all services first)
RUNLEVELS
This program is controlled by the /etc/inittab configuration file.
The /etc/inittab file is different in each version of Linux. Most of the files
referred to in /etc/inittab are in the /etc/rc.d subdirectory
Run levels 0,1, and 6 are reserved.
| Examples |
| Logged in as Root, type in the following at the command line to get following results: init 0 System halts and shutsdown init 1 System boots in single use mode init 2 Systme boots in multiuser mode with no networking init 3 Regular default multiuser mode init 4 Not Used init 5 Graphical Login init 6 System Reboots |
part 1
part 2
