The DR-DOS/OpenDOS Enhancement Project

Well, you did not tell us which version of DR-DOS you have, so
helping you with your problem is not easy.

First, in all versions of DR-DOS, the command you are looking for is
called FORMAT. It is an external command, so it must be in the
search path. If you do not have a PATH command in your AUTOEXEC.BAT
file, this means that most likely you have to run it from the
directory where FORMAT.COM or FORMAT.EXE resides.

FORMAT is not included on many boot disks, so make sure that you
have it before you are trying to run it.

You can see a list of options by using FORMAT /? or FORMAT /H.
Also, if you have the complete DR-DOS distribution, you can use
DOSBOOK FORMAT to learn more about this command.

The usual syntax to format a hard drive partition is FORMAT C: /X
where C is the drive letter and /X means that you intentionally want
to format the hard disk.

I hope this helps. If you still have questions, feel free to ask
them.