shutdown

[Jeff Hagstrom]

How do I shut the machine down so I can turn the power off?

[Sajid_1 · Accepted solution]

# shutdown -h -y 0

[Victor_5]

cd /
shutdown -hy 0

[James R. Ferguson]

Hi Jeff:

# shutdown -hy 0

You will receive a message on the console that indicates when you should actually power-off the server.

Regards!

...JRF...

[Sajid_1]

Hi again,

You have to be with root permission for doing this task. You cannot do this from a mounted file system. -h option is for halt, -y for answering "yes" to question and "0" is the seconds. For restarting replace -h with -r

HTH

[Jeff Schussele]

Hi Jeff,

An alternative to use when you KNOW that you have no critical processes running is:
/etc/reboot
But note that this should never be used in "normal" situations as is does not gracefully shut processes down. It uses brute force to kill them. But it's an option for a faster shutdown when you're in maintenance mode.

Rgds,
Jeff

[Pete Randall]

Jeff,

To expand on Jeff's answer, you can use "reboot -rq" or "reboot -hq", depending on whether you want to really reboot or halt, respectively.

Pete

[John Dvorchak]

Reboot is pretty ungracefull about shuting down your system and if you have a database running you could be in for a lot of work. I only use reboot on test systems that I have booted into single user mode. On a normal test or production server I always use:

shutdown -hy 0

Which says shut it down to a "Halt" state, answer the query with a "yes" and have "0" minutes of grace time. If you want to reboot:

shutdown -ry 0

note the "r" instead of the "h" which of course means reboot.