Add Run task @ Boot on Debian (9) Stretch on BBB

In Debian (8) Jessie you could edit the /etc/xdg/lssession/LXDE/autostart file and add a command that would be run at boot time. In Debian (9) Stretch there is no /etc/xdg/lxsession/LXDE/autostart file. What is the best way to add a command that can be run at boot startup time in Debian (9) Stretch?

@texasEE, correct with Debian 8 with LXDE window manager installed that was the path. With Stretch which desktop manager are you using? (as the path is desktop manager specific)