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Cron jobs allow you to automate repetitive tasks on the server that hosts your
web site. This is a powerful tool that allows you to take a hands-free
approach to repetitive tasks. For example, you could add a cron job that
automatically copies a MySQL database to a separate location on your site as a
backup.
There are
two different modes you can use to add a cron job:
Standard - Provides a range of pre-set options that you can choose.
This is the simplest method and is recommended.
Advanced (Unix Style) - Provides the regular Unix style cron options.
Recommended for users who are used to this method of entering cron entries.
Warning: You need to have a good knowledge of Linux commands before
you can use cron jobs effectively. Check your script with your hosting
administrator before adding a cron job.
To
add or modify a cron job:
Click on
the Cron jobs button on the home page.
If you want
to use the Standard mode, click on the Standard button.
Enter the
e-mail address to send the results of running the cron job in the top field.
Enter the
command the you want to run in the Command to run field.
Click on
one option from each of the available lists.
Click on
the Save Crontab button. Your cron job has now been added or
updated.
Note: You can always click on the Reset Changes
button to change the cron job back to whatever it was before you started
entering information.
 If you want to use the Advanced mode, click on the Advanced (Unix Style) button.
Enter the
times for the cron job in the Minute, Hour,
Day, Month, or Weekday
fields. Refer to the following page to check exactly how to enter values in
these fields -
http://www.redhat.com/support/resources/tips/cron/cron.html.
Enter the
cron job script in the Command field.
Click on
the Commit Changes button. Your cron job has now been added
or updated.
Note: You can always click on the Reset Changes
button to change the cron job back to whatever it was before you started
entering information.
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