check.lua

function password()
 if not fs.exists("password") then
  file=fs.open("password","w")
  file.writeLine("admin")
  file.close()
 else
  file=fs.open("password","r")
  pwt=file.readLine()
  file.close()
 end
end

function eject()
 disk.eject("drive_0")
 sleep(3)
 term.setCursorPos( 1,2 )
 print("                             ")
end
shell.run("clear")
while true do
 if disk.isPresent("drive_0") then
  diskname=disk.getLabel("drive_0")
  if diskname == "Chris" then
   if fs.exists("disk/auth.lua") then
    file=fs.open("disk/auth.lua","r")
    text=file.readLine()
    file.close()
    password()
    if text == pwt then
     eject()
     rs.setOutput( "back", true)
     sleep(3)
     rs.setOutput( "back", false)
    else
     term.setCursorPos( 1,2 )
     print("wrong code")
     eject()
    end
   else
    term.setCursorPos( 1,2 )
    print("file not found")
    eject()
   end
  else
   term.setCursorPos( 1,2 )
   print("wrong disk")
   eject()
  end
 else
  shell.run("clear")
  os.sleep(1)
 end
end