display free space on a unix server

I need to display the amount space avalible on a unix server in an html webpage, which will automatically update every hour. I am able to do so using a javascript in a windows based server. How would i go about doing this in a unix server. Any help, suggestions, anything would be great. thanks.

write a script that will parse the output of the df command and display it in html. javascript will not work.

im really new at this, how would i do that. thanks for the response

This might be more that what you want, but it's worth taking a look at. I have not used it so I can't tell you anything about it.

Download - Big Brother System and Network Monitor