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Date:	Sat, 6 Jul 2019 19:01:56 +0300
From:	Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To:	cygwin AT cygwin DOT com
Message-ID:	<69388071.20190706190156@yandex.ru>
To:	L A Walsh <cygwin AT tlinx DOT org>, cygwin AT cygwin DOT com
Subject:	Re: rename a user using setfacl -- possible? how?
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References:	<5D1FA19D DOT 2020707 AT tlinx DOT org> <113642000 DOT 20190706120641 AT yandex DOT ru> <5D206C63 DOT 4000908 AT tlinx DOT org>
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Greetings, L A Walsh!

> I don't think I explained things clearly.


> On 2019/07/06 02:06, Andrey Repin wrote:
>>> I guess I don't know how to modify an entry to either 1-rename it, or
>>> 2 add the new entry.
>> 
>> You don't.
>> If you want to change name for display purposes, look into nsswitch.conf and
>> associated documentation.
> ---
>         My machine's GUID changed.  This file has entry for userX
> on the old machine-GUID.  UserX also exists on the new machine GUID.
> So I renamed the old entry to UserXold so I could find all the places
> where the old GUID is referenced then change it to the machine's new guid.


> I'm not having cygwin create new groups or whatever, but trying to replace
> references to this Userid in the machine's old GUID and replace them with
> reference to the Uid with the machine's new GUID.

> if it was the main group, I'd just use find to locate instances of old
> and do chgrp to change ownership to new.  However, this is a group entry
> in an acl list -- so I need to change the name of 1 entry in the acl list.


>> 
>> It should, but I strongly suggest to avoid using it outside Cygwin directory
>> tree to maintain maximum interoperability with Windows programs.
> ---
>         No problem.  my cygwin directory is at 'C:\', where it
> has been since WinXP...  (:^|)

THAT is a problem. A big problem.

>> 
>> getent passwd
>> getent group
> ---
>         those don't display GUID/UUIDs, but *nix user+group ids.

Try it sometime. They do.

> I wanted to see the windows guid associated with an identity.

> Since the one I was looking for was a well-known-id I found it, but
> in non-well-known cases,...?  

Set nsswitch.conf to:

passwd: db
group: db

db_enum: all

then check `getent passwd`


-- 
With best regards,
Andrey Repin
Saturday, July 6, 2019 17:11:57

Sorry for my terrible english...


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