Description: splits a path (e.g. /dev/hda1) in the device (/dev/hda) and the device number (1). The device is returned as element 0 and the number as element 1 in an array.
Parameter:
path: the path to partition (e.g. /dev/hde1)
Returns:
Array with two parts. $out[0]=drive (e.g. /dev/hda), $out[1]=the device number
