Cleaning project in eclipse on linux doesn't remove the Debug/Release folder

Question

I created a C++ hello world project in linux and I could successfully build the project and I now noticed that after cleaning the project , the .o files are removed but the folder Debug/Release and also the sub-directories folder is not deleted. However in windows the folders also get deleted.
I then found out that in linux the command rm -rf is used and in windows del /F /S /Q is used.
But -r does mean recursively and -f meaning forcefully? So why isn't the folder deleted? For it to be deleted what should have been the clean command in linux??

Answer 1

This seems to be the desired behaviour as pointed out in the comments!