Filesystem Hierarchy Standard

This page is the home of two standards, the Linux Filesystem Standard (FSSTND) and its successor, the Filesystem Hierarchy Standard (FHS). The FHS has not been released yet.

The filesystem standard has been designed to be used by Unix distribution developers, package developers, and system implementors. However, it is primarily intended to be a reference and is not a tutorial on how to manage a Unix filesystem or directory hierarchy.


The FSSTND specifies a standard filesystem structure for Linux systems, including the location of files and directories, and the contents of some system files.

Linux FSSTND 1.2 is the current version of the standard. HTML, *PostScript, *DVI, *LaserJet 4, and *plain text versions are available.


The new standard addresses multi-architecture issues that FSSTND 1.2 did not anticipate and includes other minor improvements.

In addition, the new standard, while primarily directed at Linux systems, will be drafted in a way that any Unix operating system can follow the standard.

The mailing list has been renamed from "linux-fsstnd" to "fhs-discuss".

3 November 1996 - Maintained by Daniel Quinlan Blue Ribbon