Comments on: Understanding Shutdown, Poweroff, Halt and Reboot Commands in Linux

By: Robin A. Meade

Robin A. Meade — Sat, 01 Aug 2020 18:50:34 +0000

Shouldn't it be uppercase -P for power-off?

By: OluKayode Mayomi

OluKayode Mayomi — Wed, 03 Jun 2020 21:43:52 +0000

Some of y'all are imbecile, there is a reason for having all 3 commands as they are similar but not the same. For instance, the shutdown command will also write a shutdown script. Perhaps, you just want to do low-level maintenance, halt will be a suitable command to use as it will stop all running process and stop the CPU as well. You will probably remember halt quicker than Shutdown -H and as for reboot, self explanatory. Easier to remember as opposed to shutdown -r., etc.

By: Oi oi

Oi oi — Fri, 22 Nov 2019 15:10:36 +0000

In reply to Tanmaya Meher.

poweroff master race

By: Ken

Ken — Tue, 21 Aug 2018 19:57:54 +0000

Can I configure the amount of time the system is powered off during a reboot command? (Using Centos 7)

By: JAGJR

JAGJR — Wed, 18 Jul 2018 06:02:50 +0000

I would like to shutdown and poweroff machine. I have seen things like “/usr/sbin/shutdown -h +0 && /usr/sbin/poweroff” However, the poweroff command kills the machine prior to allowing programs to execute shutdown scripts.

I do not wish to simply run poweroff, because it does not execute program shutdown scripts and simply halts all processes. Is there a way to get a graceful shutdown AND power down the machine?