[ComputerCraft] remotecommander

if pocket then
  rednet.open('back')
  while true do
    term.clear()
    term.setCursorPos(1, 1)
    write('enter command: ')
    local cmd = read()
    rednet.broadcast(cmd)
  end
else
  if peripheral.getType('left') == 'modem' then
    rednet.open('left')
  elseif peripheral.getType('right') == 'modem' then
    rednet.open('right')
  else print('modem not found')
  end
    while true do
      id, msg = rednet.receive()
      shell.run(msg)
    end
end