Command Line scripts for krunner utilizing the "run command" functionality krunner has. But also working with others providing that functionality and works with the good old terminal. All commands have been scripted into their own file and corresponds with the file name. For example if you want to look into the code behind the login command then feel free to look at the source code in file login.
On KDE use the shortcut ALT+Space to open krunner and then type in the command which has been provided by a file here.
To install this beauty of headupcommands execute INSTALL as root or with sudo sudo ./INSTALL
To uninstall this beauty of headupcommands execute UNINSTALL as root or with sudo sudo ./UNINSTALL
To be found in docs.