Re trigger code after run?

-- #Clears the screen
  term.clear()
  term.setCursorPos(1, 1)
  -- Opens any modem(s) connected to the computer
local function openRednet()
  for _,side in ipairs({"top", "bottom", "front", "left", "right", "back"}) do
		if peripheral.isPresent(side) and peripheral.getType(side) == "modem" then
		  rednet.open(side)
		  return side
		end
  end
end

modemSide = openRednet()
-- Now for the recieving code
id, msg = rednet.receive()
-- Events caused by the different commands
-- Power Events
-- shutdown Event
if msg == "os.shutdown()01" then
os.shutdown()
end
-- Restart Event
if msg == "os.reboot()02" then
os.reboot()
end
-- disk events
-- Play Disk Event
if msg == "disk.playAudio03" then
   -- Start Of Code
	disk.playAudio("top")
disk.playAudio("bottom")
disk.playAudio("left")
disk.playAudio("right")
disk.playAudio("front")
disk.playAudio("back")
   -- End Of code
  end
-- Disk eject
if msg == "disk.eject04" then
-- Start Of Code
  disk.eject("top")
  disk.eject("bottom")
  disk.eject("left")
  disk.eject("right")
  disk.eject("front")
  disk.eject("back")
-- End Of code
end


end

while true do  -- Start a loop that repeats indefinitely.
  -- Now for the recieving code
  id, msg = rednet.receive()

  if msg == "os.shutdown()01" then
    os.shutdown()
  end
  .
  .
  .
end