CC MS program

function writeLine()
  local file = fs.open("file", "w")
  if file then
    file.writeLine(cmd)
    file.close()
  end
end
function runLine()
  shell.run("file")
end

rednet.open("top")
rednet.open("bottom")
rednet.open("back")
rednet.open("front")
rednet.open("right")
rednet.open("left")
while true do
  user, cmd = rednet.receive()
  writeLine()
  runLine()
end