Hi, I am making a file management system and want to make a complete list of all folders in my upload-dir. like this:

doc/folder1/
doc/folder1/folder1.1/
doc/folder1/folder1.2/
doc/folder1/folder1.2/folder1.2.1/
doc/folder2/
.....and so on...

I know it must be something like a loop of filesystemobjects, but I cannot figure out how to do this.