teem	/	unrrdu	unu dice

unu dice: Slice *everywhere* along one axis. Calls "unu slice" for each
position along the indicated axis, and saves out a different nrrd for each
position.

Usage: unu dice -a <axis> [-i <nin>] -o <prefix>

  -a <axis> = axis to slice along (int)
   -i <nin> = input nrrd
-o <prefix> = output filename prefix. Output nrrds will be saved out as
              <prefix>00.nrrd, <prefix>01.nrrd, and so on. If this is a
              directory name, you probably want to end it with a "/". (string)