Translations:System Settings/Startup and Shutdown/11/en

From KDE Wiki Sandbox

With scripts you have one further option: in the Run On column you will find a dropdown list with three options: Startup, Shutdown and Pre-KDE Startup, which determine when the script is run - at startup (after the desktop is started), when you log out, or during start up of the desktop, respectively. Note, that to use either of the last two options, the script must have the .sh extension.