Arquivo

os.pullEvent = os.pullEventRaw -- Prevents CTRL+T shortcut

term.clear() -- Clears the screen
term.setCursorPos(1, 1) -- The places the print position to the top of screen

username = {"Tody", "Detona", "Poteto", "zirkin"}  -- Here you need to define all usernames avaible
password = {"ABCD", "EUSOMITO", "LOL", "z0k2n7"}  -- Here you define what password each user has, remember to put user1's password in the first row and so on.

write("Login: ")
user = read()

write("Senha: ")
pass = read('*') -- This prevents people from reading the password as you put it in
for i=1, #username do -- Starts a loop
 if user == username[i] and pass == password[i] then
   access = true
 end
end

if access == true then
print("Logando...")
sleep(1)
print("Bem vindo a ilha "..user)
else
print("Username e senha incorreta")
sleep(2)
os.reboot()
end