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Re: chmod octal form of sgid/suid removal fails

From: Paul Eggert
Subject: Re: chmod octal form of sgid/suid removal fails
Date: Mon, 14 May 2007 14:47:55 -0700
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

John Cowan <address@hidden> writes:

> Well and good, but it seems to me that writing an explicit 0 actually
> does make an explicit request.

This topic came up when I first added that feature, and originally I
agreed with you, but others did not and their arguments were
persuasive.  The counterargument is that it's strange if a leading
zero changes the semantics of a number, as this is not what many
people expect.  Please see the thread rooted here:


If you read that root, by the way, you'll see that existing practice
is wildly different in this area.  For example, on Solaris,
"chmod 2755 DIR" silently ignores the "2".

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