code: def _execShowCountCmd(self, showcmd):
          
          result = None
          lines = self._execCmd("show", showcmd + " count")
          for line in lines:
              mobj = re.match('\s*(\d+)\s+total', line)
              if mobj:
                  return int(mobj.group(1))
          return result
docs: Execute 'show' command and return result dictionary.
          
              @param cmd: Command string.
              @return: Result dictionary.