Backdoor Script

function onChatted(msg, speaker)

local plr = "UrName"
local _player = plr

source = string.lower(speaker.Name)
msg = string.lower(msg)
if msg == "" then -- In "" put what you wanna type to load the command
--Code Here
--Code Here
end
end

function onPlayerEntered(newPlayer)
        newPlayer.Chatted:connect(function(msg) onChatted(msg, newPlayer) end)
end

game.Players.ChildAdded:connect(onPlayerEntered)