[net.micro.cpm] Manipulating CP/M floppies with UNIX?

Paul Milazzo <milazzo@rice.ARPA> (01/26/85)

Does anyone have a UNIX utility to manipulate SS SD 8" CP/M floppies
under UNIX?  I have a bare-bones program capable of extracting files.
It cannot, however, write on the floppies, nor can it deal with
attribute bits or CP/M+ file system extensions.

If no such program is conveniently available, could someone point me
towards the information necessary to write one of my own?  My CP/M
manuals don't seem to contain quite enough information.

				Thanks,
				Paul G. Milazzo <milazzo@rice.ARPA>
				Dept. of Computer Science
				Rice University, Houston, TX