/etc/xdg/marble.knsrc is in marble 4:17.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | [KNewStuff2]
ProvidersUrl=http://edu.kde.org/marble/newstuff/providers-4.5.xml
InstallPath=.marble/data/maps
Uncompress=true
[KNewStuff3]
ProvidersUrl=http://edu.kde.org/marble/newstuff/providers-4.5.xml
Categories=Marble Map
XdgTargetDir=marble/maps
Uncompress=archive
|