Computercraft Smarthome V1.0 (Controler side)

local mdmside = ""
local channel = 0
local password = ""
local noexit = true
local modem = peripheral.wrap(mdmside)
modem.open(channel)
while noexit do
    io.write("Smart home controller Command: ")
    cmd = io.read()
    if cmd == "/exit" then
        term.clear()
        term.setCursorPos(1, 1)
        write("Password: ")
        pswd = read("*")
        if pswd == password then
            noexit = false
            print("Correct password")
        else
            print("Incorrect password")
        end
    else
        modem.transmit(channel, channel, cmd)
    end
end