new root

local term = require("term")
local shell = require("shell")
local keyboard = require("keyboard")
local computer = require("computer")
local event = require("event")
local io = require("io")

u = io.open("/username.dat", "r")
 textu = u:read()
  u:close()

us = io.open("/usernames.dat", "r")
 textus = us:read()
  us:close()

ps = io.open("/passwords.dat", "r")
 textps = ps:read()
  ps:close()

local dir = shell.getWorkingDirectory()
local userHome = "/usr/home/" .. textu .. "/"

function root()
 if dir ~= userHome and dir <= userHome then
  local needSuper = "true"
  print("This action requires root access.")
 end
end

function super()
 if needSuper == true then
  print("User: ")
  username = term.read()
  username = string.gsub(username, "\n", "")
  print("Password: ")
  password = term.read(nil, nil, nil, "")
  password = string.gsub(password, "\n", "")
end
 if username == textus and password == textps then
  local superUser = "true"
  print("Logged in as Root.")
  os.sleep(1)
  os.setenv("PS1", "root" .. "@" .. textu .. "$ ")
  shell.setWorkingDirectory("/")
 else
  print("Login failed.")
 end
end

while true do
  root()
 if root == needSuper then
  super()
end
 if superUser == true then
  break
 end
end