How to recursively move all folders one directory up back one directory
Solution 1:
There is no recursive option for the mv command, so if there are directories inside the directories you want to move, you'll have to use cp. How about this one:
cp -R scenery/terrain/*/terrain/* scenery/terrain/
cp -R scenery/terrain/*/objects/* scenery/objects/
Then when you're sure that worked:
rm -rf scenery/terrain/*/terrain
rm -rf scenery/terrain/*/objects
Solution 2:
mv scenery/terrain/*/terrain/* scenery/terrain/
mv scenery/terrain/*/objects/* scenery/objects/