You need a space between "sudo" and "fdisk". If you try "sudo fdisk -l
/dev/hd?" that would be a total of three spaces -it won't work without
them.

> on to next step , i down loaded wubi to my lap top and put on a floppy ,,
>
> but i am think i need to have some sort of windows os , for the wubi to
> work

Yes, you do.