qdbus

Inter-Process Communication (IPC) and Remote Procedure Calling (RPC) mechanism originally developed for Linux. More information: https://doc.qt.io/qt-5/qtdbus-index.html.

  • List available service names:

qdbus

  • List object paths for a specific service:

qdbus service_name

  • List methods, signals and properties available on a specific object:

qdbus service_name /path/to/object

  • Execute a specific method passing arguments and display the returned value:

qdbus service_name /path/to/object method_name argument1 argument2

  • Display the current brightness value in a KDE Plasma session:

qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement/Actions/BrightnessControl org.kde.Solid.PowerManagement.Actions.BrightnessControl.brightness

  • Set a specific brightness to a KDE Plasma session:

qdbus org.kde.Solid.PowerManagement /org/kde/Solid/PowerManagement/Actions/BrightnessControl org.kde.Solid.PowerManagement.Actions.BrightnessControl.setBrightness 5000

  • Invoke volume up shortcut in a KDE Plasma session:

qdbus org.kde.kglobalaccel /component/kmix invokeShortcut "increase_volume"

  • Gracefully log out and then do nothing, reboot or shut down:

qdbus org.kde.Shutdown /Shutdown logout|logoutAndReboot|logoutAndShutdown

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