How can I safely shutdown/reboot/logout KDE from the command line?

Question

I am not talking about shutdown and reboot commands. I want to initiate the same routine from command line that would be performed if I would press the logout/reboot/shutdown button inside the KDE desktop.

Answer 1

For kde4:

qdbus org.kde.ksmserver /KSMServer org.kde.KSMServerInterface.logout -1 -1 -1

The three integer parameters are the confirm, sdtype and sdmode arguments to KWorkSpace::requestShutDown. Their values are explained at the top of the page.

Answer 2

For any version of KDE (maybe also GNOME and others):

In KDE Control Center (KDE3.5/trinity) you can set a keyboard shortcut for "halt without confirmation" (should be a complicated one to avoid tragedy, like Ctrl+Shift+Alt+Delete) and then run xvkbd (virtual keyboard):

xvkbd -text '\C\S\A\d'

You can create an alias for this (e.g. kdehalt);

My favourite one: sleep 1h 20m && kdehalt or wget "http://something" ; kdehalt.

Answer 3

I usually use init command for restart and ... . I like this command

# Default run level. The run levels are:
#   0 - halt (Do NOT set initdefault to this)
#   1 - Single user mode
#   2 - Multiuser, without NFS 
#   (The same as 3, if you do not have networking)
#   3 - Full multiuser mode
#   4 - unused
#   5 - X11
#   6 - reboot (Do NOT set initdefault to this)


sjb@sjb-laptop~$ init 6