. type=dir
./a type=dir
./a/change-dir-to-link type=link mode=0755
./b type=dir
./b/change-link-to-dir type=dir mode=0755
./c type=dir
./c/aaa type=file
./c/zzz type=file
./c/change-dir-to-link type=link mode=0755
./d type=dir
./d/aaa type=file
./d/zzz type=file
./d/change-link-to-dir type=dir mode=0755