code: def ui_cmd_bar():
      
      cmd_bar = ("\rSELECT COMMAND -  {2}(R){1}un   {0}(C){1}onnect   "
                 "{3}(S){1}top   {0}(U){1}pdate"
                 "   {0}(Q){1}uit: ".
                 format(C_TI, C_NORM, C_GOOD, C_ERR))
      # FUTURE - TO BE USED WHEN DETAILS IMPLEMENTED
      # cmd_bar = ("\rSELECT COMMAND -  {2}(R){1}un   {0}(C){1}onnect   "
      #            "{3}(S){1}top   {0}(D){1}etails   {0}(U){1}pdate Info"
      #            "   {4}(Q){1}uit: ".
      #            format(C_TI, C_NORM, C_GOOD, C_ERR, C_HEAD2))
      ui_erase_ln()
      ui_print(cmd_bar)
docs: Display Command Bar.