Source : Free On-Line Dictionary of Computing

Filesystem Hierarchy Standard
     
         (FHS) A {standard} designed to be used by
        {Unix} {distribution} developers, {package} developers, and
        system implementors.
     
        FHS consists of a set of {requirements} and guidelines for
        file and directory placement under {UNIX}-like {operating
        systems}.
     
        The {guidelines} are intended to support interoperability of
        applications, system administration tools, development tools,
        and scripts.  These systems should also be supported with
        greater documentation uniformity.
     
        The standard is primarily intended to be a reference and is
        not a tutorial on how to manage a Unix filesystem or directory
        hierarchy.
     
        {Home (http://www.pathname.com/fhs/)}.
     
        {RedHat deviation
     (http://www.redhat.com/corp/support/manuals/RHL-6.0-Manual/install-guide/manual/doc084.html)}.
     
        (2001-05-24)