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=0.2 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HTML_FONT_LOW_CONTRAST,HTML_IMAGE_ONLY_16,HTML_MESSAGE, MAILING_LIST_MULTI autolearn=no autolearn_force=no version=3.4.4 Received: (qmail 27053 invoked from network); 15 Nov 2021 21:39:58 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 15 Nov 2021 21:39:58 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 8EFC29C831; Tue, 16 Nov 2021 07:39:14 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id A4EBF9C798; Tue, 16 Nov 2021 07:38:50 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ccc.com header.i=@ccc.com header.b="L43pE/+y"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 93CA49C203; Tue, 16 Nov 2021 07:38:21 +1000 (AEST) Received: from mail-oi1-f176.google.com (mail-oi1-f176.google.com [209.85.167.176]) by minnie.tuhs.org (Postfix) with ESMTPS id C11C29C1E1 for ; Tue, 16 Nov 2021 07:38:20 +1000 (AEST) Received: by mail-oi1-f176.google.com with SMTP id n66so37607713oia.9 for ; Mon, 15 Nov 2021 13:38:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ccc.com; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=iJXA/e74RZTs+4RqNCk7zqFc2BKCxdbXEXOt9X4ZX/c=; b=L43pE/+y+VRNs6HDvVIUmWoh6pmH+7Q0iZCbktLp0XxO/exeCyC/2e1PtC/TQaEMYs 9++HdHy1w4quPuZdyBSOOsF3CF+kGFxtla8Odt84nbnghNCf6j7Bm2gVzOXRAVnmz/cL tFgT/ekt0fE8LRWxliETxqJuCUxb6O9eZDt6c= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=iJXA/e74RZTs+4RqNCk7zqFc2BKCxdbXEXOt9X4ZX/c=; b=mmNVCmas8hjo1gPMA8/eYR+GARVy7QT2jipVB9D8eHOzyjsOFxU9ME/SL25c/NxyNd 5c46tPwWmiIm7zGUASQVv6oS+WHztb1q7eX38QF1XbREs3vr8368406aJRqn0Ekp1/FE 8JUf4ELoLMdsPgYZJenVvr6L6cXMJn6MNBjWUXsjwuL/PTHRcAGRDlUNNCBiQjg8054r 86hUUt/wrtAkg9bGrYXINlPmovtdxDisPqiH7WN4ep9f3cteAYTvLSLR/4vruZG+tw/i jySIR/VHVAj8IIYnVcvX2yWPjNG3ODPUhKiDYLija6kZaQOLs0J2pVXXyWog2GPczyCc mGmA== X-Gm-Message-State: AOAM531J45NSBzf/FiVk/WfnA30eWdutlXEW2DE7OKFbbbcTHcqwuCjn ceyUDATOKB4z80PIXgy6BQCeYdqmmZg9Z0/0qH03jg== X-Google-Smtp-Source: ABdhPJxVIdz63HUYdernd+HJnTTTw3QIuCSBQP+++4XXtXYLA9Zk8HQduqZBzjWZwYcWr3LHVslZXhNmIjR9HKMJ5Jo= X-Received: by 2002:aca:c45:: with SMTP id i5mr48948852oiy.176.1637012300003; Mon, 15 Nov 2021 13:38:20 -0800 (PST) MIME-Version: 1.0 References: <202111152017.1AFKH9Om032644@freefriends.org> In-Reply-To: <202111152017.1AFKH9Om032644@freefriends.org> From: Clem Cole Date: Mon, 15 Nov 2021 16:37:55 -0500 Message-ID: To: arnold@skeeve.com Subject: Re: [COFF] [TUHS] Will someone please explain the history and usage of gpasswd / newgrp / sg? X-BeenThere: coff@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Computer Old Farts Forum List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tuhs@minnie.tuhs.org, coff@minnie.tuhs.org, gtaylor@tnetconsulting.net Content-Type: multipart/mixed; boundary="===============5933467669165589585==" Errors-To: coff-bounces@minnie.tuhs.org Sender: "COFF" --===============5933467669165589585== Content-Type: multipart/alternative; boundary="000000000000a290dc05d0daa022" --000000000000a290dc05d0daa022 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Fair enough. =E1=90=A7 On Mon, Nov 15, 2021 at 3:17 PM wrote: > 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 th= e > > BSD group scheme is explained. This did seem useful and System V pick= ed > > 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 > --000000000000a290dc05d0daa022 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Fair enough.
3D""=E1=90=A7

On Mon, Nov = 15, 2021 at 3:17 PM <arnold@skeeve.= com> wrote:
Clem Cole <clemc@c= cc.com> wrote:

> I'm sure it was used in many other ways, but that was certainly on= e scheme
> we used at UCB when wnj added them.=C2=A0 Again check the 4.2 docs, wh= ere the
> BSD group scheme is explained.=C2=A0 =C2=A0This did seem useful and Sy= stem V picked
> it up also fairly soon after BSD released it to the world, and fortuna= tely
> 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
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