Ubuntu – Why does directory contain 2 hard links

14.04directoryhard link

When I create a new directory it contain 2 hard links and when I go inside to the new directory it contain two directories (. and ..) . has hard link count 2 and .. has hard link count 3, but I learn that directory can not contain more than one hard link. can anyone explain this scenario ?

Best Answer

Every directory has a link to itself and its parent (that's why . of an empty directory will have a link count of 2). But because every directory links to its parent, any directory that has a subdirectory will have a link from that child. Thus the link count of a directory is 2 + the number of directories immediately contained by it.

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