code: def getSpaceUse(self):
          
          stats = {}
          try:
              out = subprocess.Popen([dfCmd, "-Pk"], 
                                     stdout=subprocess.PIPE).communicate()[0]
          except:
              raise Exception('Execution of command %s failed.' % dfCmd)
          lines = out.splitlines()
          if len(lines) > 1:
              for line in lines[1:]:
                  fsstats = {}
                  cols = line.split()
                  fsstats['device'] = cols[0]
                  fsstats['type'] = self._fstypeDict[cols[5]]
                  fsstats['total'] = 1024 * int(cols[1])
                  fsstats['inuse'] = 1024 * int(cols[2])
                  fsstats['avail'] = 1024 * int(cols[3])
                  fsstats['inuse_pcent'] = int(cols[4][:-1])
                  stats[cols[5]] = fsstats
          return stats
docs: Get disk space usage.
          
          @return: Dictionary of filesystem space utilization stats for filesystems.