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Date: Mon, 28 Feb 2000 20:16:58 -0500
Message-Id: <200002290116.UAA22995@envy.delorie.com>
From: DJ Delorie <dj AT delorie DOT com>
To: khan AT NanoTech DOT Wisc DOT EDU
CC: cygwin-developers AT sourceware DOT cygnus DOT com
In-reply-to: <Pine.HPP.3.96.1000228182811.25928A-100000@hp2.xraylith.wisc.edu>
	(message from Mumit Khan on Mon, 28 Feb 2000 18:54:51 -0600 (CST))
Subject: Re: FS layout issues for v1.1 (eg., /bin and /usr/bin)
References:  <Pine DOT HPP DOT 3 DOT 96 DOT 1000228182811 DOT 25928A-100000 AT hp2 DOT xraylith DOT wisc DOT edu>


In the Linux FSS, they talk about /,/usr,/usr/local like this:

* / is for programs that are required to boot the system to its normal
  multi-user mode.  Nominally, these would be statically-linked
  programs to remove a dependence on the shared library system being
  operational.

* /usr is for other standard user-level programs installed with the OS
  (or official packages) and is normally built with shared libraries.

* /usr/local is for programs that are installed only on that machine
  (i.e. not part of the "standard" package).

I recall that there is a minimum set of "expected" commands in /bin
(like ls, cp, sh, etc) but since cygwin isn't involved in booting most
of its software belongs in /usr.  /usr/local should never be touched
(except maybe to set up an empty directory structure) by the standard
installer.