From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <5f85e2894cba0a463e15fda5d6490297@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] union directories
From: "Russ Cox" <rsc@plan9.bell-labs.com>
In-Reply-To: <20030303200021.17490.qmail@mail.dirac.net>
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Date: Mon,  3 Mar 2003 15:05:51 -0500
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> Is there any way to test the writability
> of a directory, other than by attempting
> to create a file there, or by combining
> ls -ld with an examination of the output of ns?

No.

I'm not even sure how ls -ld would help you.
ns would give you a first approximation.