Environment variables

Many environment variables are useful for managing and controlling SonicDE. These are the supported ones. To set one for your whole session, see Session environment variables.

#Automatically set variables

#KDE_FULL_SESSION

Set to true at startup. Some programs use it to tell whether they're running inside a full session. If you use this variable to detect a running session, check that its value isn't empty rather than checking that it equals true, because the value might change in future.

#KDE_SESSION_VERSION

Set at startup to the major version number of the desktop framework being run. This lets you find out, for example, which kreadconfig to run: kreadconfig${KDE_SESSION_VERSION}, which is kreadconfig6 here.

#Display and window management

#KDEWM

If KDEWM is set, its value is used as the window manager at startup, instead of SonicWin.

#File system

#KDE_HOME_READONLY

Set this variable to indicate that your home folder is mounted read-only.

#KDESYCOCA

Lets you set the path and name of the generated configuration cache file.

#Troubleshooting and debugging

#KDE_DEBUG

Setting this variable turns off the crash handler and lets the application create a core dump instead, which allows debugging after the fact. ulimit -c 0 will also prevent core dumps.

#Look and feel

These variables influence the look and feel of the user interface.

#QT_QUICK_CONTROLS_MOBILE

Makes Kirigami applications behave as if they're running on a mobile device such as a phone.

#KDE_KIRIGAMI_TABLET_MODE

Makes Kirigami applications behave as if they're running on a tablet or a transformable laptop, preferring touch input to the mouse and keyboard.

#freedesktop.org compliance

These variables are defined in the freedesktop.org base directory specification and are supported by all compliant environments and applications, including SonicDE. See also the XDG filesystem hierarchy page.

#XDG_DATA_HOME

The base directory for data files specific to a user. If it's not set or is empty, $HOME/.local/share is used.

#XDG_CONFIG_HOME

The base directory for configuration files specific to a user. If it's not set or is empty, $HOME/.config is used.

#XDG_DATA_DIRS

The preference-ordered set of base directories to search for data files, in addition to $XDG_DATA_HOME. Separate the directories with a colon. If it's not set or is empty, /usr/local/share/:/usr/share/ is used.

#XDG_CONFIG_DIRS

The preference-ordered set of base directories to search for configuration files, in addition to $XDG_CONFIG_HOME. Separate the directories with a colon. If it's not set or is empty, /etc/xdg is used.