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Introduction

Shutdown automatically in a centos 7 server is a very easy task. It is possible to set shutdown operation at any time as per your need. It is very helpful task while running any installtion or other processes in the system that could be finished during night time or unavailable time for the client.This article shows you how to set shutdown automatically.

Execute shutdown command

Execute following command to shutdown the system at 15:00, never forget timing will set in 24hr format.

# shutdown 15:00

Cancel scheduled shutdown task

To cancel scheduled shutdown task, run following command

# shutdown -c 
Broadcast message from root@amal-centos7.centriohost.com (Mon 2016-01-18 23:24:16 MSK):
The system shutdown has been cancelled at Mon 2016-01-18 23:25:16 MSK!

Using Cron job

Also by setting cronjob, it is possible to shutdown the system automatically.

# crontab -e

Add the following cron job

0 15 * * * /sbin/shutdown 

Restart crond service

# /bin/systemctl restart crond.service

Please make sure to remove the cronjob too.