mateconftool-2 --type boolean --set /apps/caja/desktop/computer_icon_visible false
mateconftool-2 --type boolean --set /apps/caja/desktop/trash_icon_visible false
mateconftool-2 --type boolean --set /apps/caja/desktop/home_icon_visible false
mateconftool-2 --type boolean --set /apps/caja/desktop/volumes_visible false