View source for Cache Directory Tagging Standard

{{FormatInfo
|subcat=Archiving
|extensions={{ext|tag}}
|released=2004
}}
The '''Cache Directory Tagging Standard''' is a simple way to mark directories that should be excluded from backups or other archiving.

== Details ==
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 "<code>Signature:&nbsp;8a477f597d28d172789f06886806bc55</code>". Any following bytes are insignificant.

== Specifications ==
* [http://www.brynosaurus.com/cachedir/spec.html Cache Directory Tagging Standard]

== Software ==
* Supported by [http://www.gnu.org/software/tar/ GNU tar], starting with version 1.15 (<code>--exclude-caches</code> option)

== Links ==
* [http://www.brynosaurus.com/cachedir/ Cache Directory Tagging web site]

[[Category:Backup]]
[[Category:File formats with a distinctive filename]]