code: def system_procRet(str_command, b_echoCommand=0):
          
          if b_echoCommand: printf('<p>str_command = %s</p>', str_command)
          str_stdout = os.popen(str_command).read()
          retcode = os.popen(str_command).close()
          return retcode, str_stdout
docs: Run the <str_command> on the underlying shell. Any stderr stream
          is lost.
  
          RETURN
  
              Tuple (retcode, str_stdout)
              o retcode: the system return code
              o str_stdout: the standard output stream