U0 OnceDemo()
{//Set code to execute next reboot.
	Once("Beep;");
	Once("Dir;"); //You can issue multiple and they get queued.
	"Reboot ";
	if (YorN)
		BootRAM;
}

OnceDemo;

//There are variants for sys_task $LK,"SysOnce",A="MN:SysOnce"$().