UH V43.lua

function Wait(seconds)

  local start = os.time()
  repeat until os.time() > start + seconds

end

function Game(min,max)

    while true do

        print("Guess the Number betwen")
        print(min,"and",max)
        Ans = math.random(min,max)
    Guss = io.read("*n")
        if Guss == Ans then
            print("You win!")
            break
        end

        if not (Guss == Ans) then
            print("1 = Try again")
            TA = io.read("*n")
        end

        if not (TA == 1) then
            print("Correct answar:",Ans)
            break
        end

        for i=1,5 do
            print("")
        end
        Wait(1)

        Input = 0

    end
    for i=1,5 do
        print("")
    end
    Wait(1)

    Input = 0

end

function Calculate()

    print("1st number")
    one = io.read("*n")
    print("Symbol")
    print("(0 = -, 1 = +")
    print("2 = *, 3 = /)")
    Symbol = io.read("*n")
    print("2nt number")
    two = io.read("*n")

    if Symbol == 0 then
        Out = one-two
    end

    if Symbol == 1 then
        Out = one+two
    end

    if Symbol == 2 then
        Out = one*two
    end

    if Symbol == 3 then
        Out = one/two
    end

    print("")
    print(Out)
    Wait(1)

    Input = 0

end

function fileClient()

  local command = 0
  local dir = "/"

    os.execute("clear")
  --BTW DON'T use spaces in file names

  io.read("*line") -- reset io.read

    while not (command == "exit") do

    io.write("\n" .. user .. "@" .. dir .. " $:")

        command = io.read("*line")

    if command == "ls" then
          os.execute("ls -Ah files-V4.3/" .. dir)
    end

      if string.sub(command, 1, 2) == "cd" then
      dir = string.sub(command, 4, string.len(command))
    end

    end

end

function appStore()

    print(os.execute("ls -h apps-V4.3"))

end

userNum = 1
user = "root"
r = 1

users = {}
passwords = {}
userCount = 1

users[1] = "root"
passwords[1] = "password"

while r == 1 do

  os.execute("clear")
    print("Hello,")
    Wait(1)
    print("press enter to")
    print("continue.")
    io.read()

    while true do

        print("1:Launch")
        print("2:Tools")
        print("3:Files")
        print("4:Shutdown")
        Input = io.read("*n")

        if Input == 1 then

            print("1:Calculator")
            print("2:Guess")
            --print("3:App Store")
            print("0:back")
            Input = io.read("*n")

            if Input == 1 then

                print("Calculator:")
                print("")
                Calculate()
            end

            if Input == 2 then

                print("Game:")
                print("")
                Game(1,10)
            end

            --if Input == 3 then

            --  appStore()

            --end

        end

        if Input == 2 then

            print("1:Time")
            print("2:Info")
      print("3:New user")
      print("4:Change password")
            print("0:back")
            Input = io.read("*n")

            if Input == 1 then

                print(os.date())
                Wait(1)

                Input = 0

            end

            if Input == 2 then

                print("this program was writen compoletoly by ben1jen,\nit has 274 lines of code.")

                Input = 0

            end

      if Input == 3 then

        io.read("*line") -- reset io.read

        io.write("username:")
        local usernm = io.read("*line")
        io.write("Password:")
        local passwd = io.read("*line")

        users[userCount + 1] = usernm
        passwords[userCount + 1] = passwd

        userCount = userCount + 1

        Input = 0

      end

      if Input == 4 then

        io.read("*line") -- reset io.read

        io.write("New password:")
        local passwordTMP = io.read("*line")

        passwords[userNum] = passwordTMP
        print("password changed to:" .. passwords[userNum])

        Wait(1)

        os.execute("clear")

        Input == 0

      end

        end

        if Input == 3 then

            fileClient()

        end

        if Input == 4 then

            print("1:Shutdown")
            print("2:Reboot")
            print("3:Sleep")
      print("4:Logout")
            print("0:back")
            Input = io.read("*n")

            if Input == 1 then

                r=0
                os.execute("clear")
                break

            end

            if Input == 2 then

                os.execute("clear")
                io.read()
                break

            end

            if Input == 3 then

                os.execute("clear")
                Wait(1)
                io.read() -- reset io.read
                io.read()

            end

      if Input == 4 then

        for i = 1, userCount do
          io.write(i .. ":" .. users[i] .. "\n")
        end

        userNum = io.read("*n")

        io.read("*line") -- reset io.read

        io.write("Password:")
        local passwordTMP = io.read("*line")

        if passwordTMP == passwords[Input] then
          user = users[userNum]
        else
          print("PASSWORD INCORRECT")
        end

      end

        end

    end

end