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Date: Fri, 31 Aug 2001 14:18:51 +0200
From: Corinna Vinschen <cygwin AT cygwin DOT com>
To: Cygwin News Group <cygwin AT sources DOT redhat DOT com>
Subject: Re: Why is the file created via "cmd /c echo.>1" reported by "ls -l" as owned by Administrator and group None?
Message-ID: <20010831141851.A28329@cygbert.vinschen.de>
Mail-Followup-To: Corinna Vinschen <cygwin AT cygwin DOT com>,
	Cygwin News Group <cygwin AT sources DOT redhat DOT com>
References: <20010831121656 DOT A183 AT BOEKHOFF_M>
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In-Reply-To: <20010831121656.A183@BOEKHOFF_M>; from malcolm.boekhoff@actfs.co.uk on Fri, Aug 31, 2001 at 12:16:56PM +0100

On Fri, Aug 31, 2001 at 12:16:56PM +0100, malcolm.boekhoff wrote:
> Dear Cygwinners,
> 
> If I do this in a Dos, Cmd.com prompt:
> 
>     echo.>1
> 
> and this in the same directory in a Bash prompt:
> 
>     echo>2
> 
> the files do not have the same owner/group/permissions:
> 
>     Fri 31/08/2001 11:39:43.28 D:\temp>echo.>1
> 
>     Fri 31/08/2001 11:50:22.90 D:\temp>bash
>     Fri Aug 31-11:50:25 /tmp 501$ echo>2
>     Fri Aug 31-11:50:27 /tmp 502$ ls -l ?
>     -rw-r--r--    1 boekhoff Administ        2 Aug 31 11:50 1
>     -rwxrwxrwx    1 Administ Domain U        2 Aug 31 11:50 2
>     Fri Aug 31-11:50:31 /tmp 503$
> 
> How can I keep the permissions/owner/group consistent?
> 
> I guess I am really curious as to why NT doesn't create the file
> properly.

Did you read the online user's guide, especially the ntsec
chapter? http://cygwin.com/cygwin-ug-net/ntsec.html.

> P.S. I have discovered that I *can* keep the permissions consistent by:
> 
>         1. Start DOS prompt.
>         2. Start bash.
>         3. Start another DOS prompt.
> 
>     This appears to sort of work, as the following output shows. However
>     it doesn't feel right - starting all those shells and anyway it

When the first process has been started (here `bash') using `ntsec',
the processes' access token is changed to reflect the settings in
/etc/passwd and /etc/group so resulting in POSIXly correct user and
group settings. This settings are inherited by child processes so
a cmd started from bash uses the same settings.

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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