Display Command Bar.

def ui_cmd_bar():
    """Display Command 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)