Hard link

A file structure element with information about the directory in which the file is contained. A hard link establishes a connection between segmented data blocks on the drive and the file location in terms of the file system. A file can have several hard links, in which case it is displayed in several folders. But the file system views it as one object.

A file without hard links is not visible to the file system, and the disk areas that it occupies are considered free.