CentOS Installation crontab and

Install Crontab:
[email protected] ~]# Yum install Vixie-cron
[email protected] ~]# Yum install Crontabs

Description
Vixie-cron package is the main program of Cron;
The Crontabs package is a program used to install, uninstall, or list tables used to drive the cron daemon.
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Cron is a built-in service for Linux, but it does not automatically get up, and you can start and shut down this service in the following ways:
/sbin/service Crond Start//Startup service
/sbin/service Crond stop//Shut down service
/sbin/service crond Restart//Restart service
/sbin/service Crond Reload//Reload Configuration

View crontab Service Status: Crond status

To see if the Crontab service is set to boot, execute command: NTSYSV

Add to boot auto start:
Chkconfig--level Crond on

CentOS Installation crontab and