What is the Unix command to create a hardlink to a directory in OS X?

Question

How do you create a hardlink (as opposed to a symlink or a Mac OS alias) in OS X that points to a directory? I already know the command \"ln target destination\" but that on

Answer 1

In Linux you can use bind mount to simulate hard linking directories. Not sure about OSX

sudo mount --bind /some/existing_real_contents /else/dummy_but_existing_directory
sudo umount /else/dummy_but_existing_directory