how run cron job???

I am new here.. i would like to know how exactly to run a Cron job?

this includes also on how to create the cron job file?

thank you.

Got the answer from one of the post by Zarcon.. Thanks buddy...

It says..

"How to run a Cron Job Manually:

There is a way to manually execute the cron job also, by renaming the .htaccess file located in the /periodic folder to something like .htaccess.old. You can then manually run the cron job by physically typing in the location in your browsers address bar. Example: www.mysite.com/periodic/cron.php
- You will want to make sure you have cleared the /cache (except for .htaccess) and /public_cache directories.
- When you navigate to your www.mysite.com/periodic/cron.php, you WILL GET A BLANK PAGE. This is normal. If you see that this page loads instantly, try clearing the cache as explained above and try again. The page SHOULD load for at least a couple of seconds.
** Before manually running your cron job, please verify that your cron job settings are correct. Also, if you have renamed your .htaccess file during this process, make sure you rename it BACK."