From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 23462 invoked from network); 15 Nov 2021 21:08:08 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 15 Nov 2021 21:08:08 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 67C459C245; Tue, 16 Nov 2021 07:08:05 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 3B7449C203; Tue, 16 Nov 2021 07:07:53 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 76C5F9C203; Tue, 16 Nov 2021 07:07:49 +1000 (AEST) X-Greylist: delayed 3036 seconds by postgrey-1.36 at minnie.tuhs.org; Tue, 16 Nov 2021 07:07:48 AEST Received: from freefriends.org (freefriends.org [96.88.95.60]) by minnie.tuhs.org (Postfix) with ESMTPS id B8DAB9C1E1; Tue, 16 Nov 2021 07:07:48 +1000 (AEST) X-Envelope-From: arnold@skeeve.com Received: from freefriends.org (freefriends.org [96.88.95.60]) by freefriends.org (8.14.7/8.14.7) with ESMTP id 1AFKH9OR032645 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 15 Nov 2021 13:17:11 -0700 Received: (from arnold@localhost) by freefriends.org (8.14.7/8.14.7/Submit) id 1AFKH9Om032644; Mon, 15 Nov 2021 13:17:09 -0700 From: arnold@skeeve.com Message-Id: <202111152017.1AFKH9Om032644@freefriends.org> X-Authentication-Warning: frenzy.freefriends.org: arnold set sender to arnold@skeeve.com using -f Date: Mon, 15 Nov 2021 13:17:09 -0700 To: gtaylor@tnetconsulting.net, clemc@ccc.com References: In-Reply-To: User-Agent: Heirloom mailx 12.5 7/5/10 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: Re: [TUHS] [COFF] Will someone please explain the history and usage of gpasswd / newgrp / sg? X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tuhs@minnie.tuhs.org, coff@minnie.tuhs.org Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Clem Cole wrote: > I'm sure it was used in many other ways, but that was certainly one scheme > we used at UCB when wnj added them. Again check the 4.2 docs, where the > BSD group scheme is explained. This did seem useful and System V picked > it up also fairly soon after BSD released it to the world, and fortunately > did not change the BSD semantics. Not so soon, really. The new group scheme was widely released with 4.2 BSD (~ 1983). System V didn't pick up multiple groups until System V Release 4, circa 1989. Arnold