In Unix environments there are two ways to link a file. The first being hard-linking. Hardlinking is different than symlinks in the fact that if you remove the original file that the hardlink points to, the link itself can still show you the content of the original file. Where as a symlink is useless without the original file (think “shortcuts” in Windows). Also, you cannot hardlink a directory, only symlink it. All this might seem hard to grasp, but let´s explain