There's probably something better, but here's for starts:
cfdisk or
fdisk to partition them. Cfdisk is slightly easier to use because it's sort of graphical. Not in the GUI sense, but, when you fire it up, it lists the drives and lets you select the one you want to work on with the arrow keys, as well as to select the action you want to take with the arrow keys.
mkfs to apply a file system.
fsck to check the file system.