FPROTECTOR

if not fs.hide then
  local ls=fs.list
  local tHidden={}
  fs.list=function(...)
   local results=ls(...)
   for k,v in pairs(results) do
    if tHidden[shell.resolve(v)]==true then
         table.remove(results,k)
    end
   end
   return results
  end
  rawset(fs,'hide',function(dir)
   if fs.exists(dir) then
    tHidden[shell.resolve(dir)]=true
    return true
   else
    return false
   end
  end)
end