Rebuilding autostart files and /or copying them from thumb drive
I took too many enteries from my Ubuntu 12.04 64-bit startup file. Now user passwords are not recognized by Unity. I have a simialr pc and I can get autostart folder on to thumb drive. How do I get it from the thumb drive to /etc/xdg/ ?
If I cannot do that, how do I recover from my mistake? How does one rebuild autostart directory from the command line?
Can one reload lightdm etc so that it has the right users and passwords?