Thank you very much, I really appreciate and you are right I can do using that and I have done also but here is the twist.

my bdf command gives me a bunch of output I think if I print it here it will be a long list but I am sure you are aware of that. It includes local file sytem + all the mounted file systems and of course I cant put that in one row of a table so I need to calcuate that using script and find out ( total, used, free and percentage used) and only that information I can enter in the table.
I tried to write korn shell script for that but Its not that easy but I am still trying.

Anybody have some script already or have some idea about it.

I hope I made it clear this time. if any queries please let me know. I will appreciate your help
thaks alot