Cron job are increasingly common and allow you to perform certain tasks scheduling really helpful. Hostgator shared hosting come with cron, and cron you can add through your control panel Hostgator cPanel.
“Crontab is a process in Unix systems that uses a Daemon called cron to execute commands to the user at some point.”
“It allows you to execute commands at any time you specify. Enter the command you want to run and travel time.”
After reading the above explanation for cronjob hostgator, suppose you get the idea that the cron tasks such as planning tasks in the windows system.
From Hostgator cpanel, you can schedule the task to run every minute, hours, days or months.
If you have a script that send e-mail to the customer every Monday, you can set the cron job to run the script on every Monday, and so the process of mailing lists and send e-mail your client.