"eof" expected error

heres the code please escuse my bad indenting

eof means end of file

as an error, it means that you have too many ends.

Indenting your code properly helps a lot, I also commented your ends, so that you can see which one ends what. additionally I moved some of your ends onto a separate line

while true do
  term.clear()
  term.setCursorPos(1, 1)
  print("please enter your login information")
  sleep(1)
  print(" ")
  print("Username:")
  local yourinput = read()
  if input == "Test" then
    --#stuff to do in if goes here
  end --#if
  print("Password:")
  sleep(0)
  input = read("*")
  if input == "Test" then
    --#stuff to do in if goes here
  end--#if
  redstone.setOutput("back", true)
  print("Information correct")
  sleep(2)
  os.reboot()
end --#while
else --#this should cause a problem, as you have ended your if statements already
print("Intruder detected sounding alarms")
sleep(1)
redstone.setOutput("right", true)
sleep(10)
redstone.setOutput("right", false)
sleep(1)
os.reboot()
end --#nothing to end
end --#nothing to end