Cache Directory Tagging Standard
The Cache Directory Tagging Standard is a simple way to mark directories that should be excluded from backups or other archiving.
The standard proposes that if a particular file named CACHEDIR.TAG is present in a directory, the contents of that directory and all its subdirectories need not be archived.
The first 43 bytes of a CACHEDIR.TAG file are the ASCII string "
Signature: 8a477f597d28d172789f06886806bc55". Any following bytes are insignificant.
- Supported by GNU tar, starting with version 1.15 (