As Unix users, we know there are so much paths in our system. From / to /home, etc, etc. And you knew these paths are assigned to particular files and folders. For example, /home is home users directories while /opt is the path for packages installed. But, how did it went like that? And why? Rob Landley, who maintain Linux Firmware and an ex-maintainer of BusyBox, is trying to tell us the story behind these paths.