From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,MAILING_LIST_MULTI, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: from minnie.tuhs.org (minnie.tuhs.org [50.116.15.146]) by inbox.vuxu.org (Postfix) with ESMTP id 2072E29905 for ; Sun, 9 Jun 2024 10:01:46 +0200 (CEST) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id C412E42818; Sun, 9 Jun 2024 18:01:40 +1000 (AEST) Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by minnie.tuhs.org (Postfix) with ESMTPS id 84F8B42814 for ; Sun, 9 Jun 2024 18:01:30 +1000 (AEST) Received: by mail-pj1-x102f.google.com with SMTP id 98e67ed59e1d1-2c1ab9e17f6so2981979a91.1 for ; Sun, 09 Jun 2024 01:01:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1717920090; x=1718524890; darn=tuhs.org; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=Jjszr11HAeJxbzQry30ytbuJJDPTBQ4QWI2y0VM0vp8=; b=Zab2SeEpASyexG3BJGYaxrjzjia/oLHFlDU8KZxp97Srn4FVlFvGfVM5Ru2cs1Klbq Nag/cB3zqlgSXUgfmYyN6tAThvfwTun8DNg+NUbEc+Cjitd71HJrwBfgI7YkhW9t24+o 5SeglIK1hdDnAIjHOCIAPctzmkrMRxJKbbZIaX3Jdq/5imc+tGkzDdkIyKaKOiL1ANhl 7zPFMcWH/MGHtHDkfo4IFW7B1BTow0W2ISjr2X0kb6Yfjyg23dkaOqKXSznNP120q2D4 8ABVlVZtNuwfu6XalHu3u8Iei3fgoaeeSftyeubURLb9LG3+edop7jl/uCptC05O/hTd ISvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1717920090; x=1718524890; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Jjszr11HAeJxbzQry30ytbuJJDPTBQ4QWI2y0VM0vp8=; b=ZqhEGlChNLV7pjnxiAuNXsT6UjNpkDLMq31lsa+moLcT3oTuJXusR7t0Wr6vrF+y0Z xoQ8fjhdevOKjal5QTs++Vrk/obTrBz5boJy0fGGO2eV5JPe6IlVtg6wQERUURFS35Ij vkMxe/yojFHSAuP6VUB8T2tL11D1TG8PXckgWrXPXu+Xix12GiPfunjs7xXe7ssk0vDA 0fVH8ely5Ve8vphxt9zUIydb1AX8/U62G6PD/vYfYviqEYn5acG4LzZ0+LRK48SlOGEl lNlDezYfk7H7Rz1hj2OqybCBI7AlWs/zg/eWdF6oAm1SMOhG49dx5f4utsqOTNegPgYT QxlQ== X-Forwarded-Encrypted: i=1; AJvYcCVeZ43feN6L6GJg3TSCa4ejlkymAan/hOW8E30gcY226+LWOP8E/7bzao421Wf+h2hmzDyOnURYLpcmJ2ux X-Gm-Message-State: AOJu0YzZqG46WUPAxNDXL3uIupow1LIx+gzv+YYpTCkNfT5xHm9/ZS4C TOOPHqg3juzibu98YXSZtYqI5P+scJApDVNC+4LtI53huHT3xzXu62O61qRx4Lajw7mHk4HPggx VgKBqZ+es0EfmrxLEGuy6tK/juX8= X-Google-Smtp-Source: AGHT+IEa2E75Z03F4RNLQwUoFrwEUjwLZPlHTsLML8UT4mAaIT8uebw5NTAJrTjsA3DxFzLWRsLsTft3Ng3W1kVcnzI= X-Received: by 2002:a17:90a:a891:b0:2c0:29d5:3515 with SMTP id 98e67ed59e1d1-2c2bcac8c4dmr5716935a91.3.1717920089688; Sun, 09 Jun 2024 01:01:29 -0700 (PDT) MIME-Version: 1.0 References: <20240606095502.AD4EE210F4@orac.inputplus.co.uk> <20240606194901.F5bDRUkh@steffen%sdaoden.eu> In-Reply-To: <20240606194901.F5bDRUkh@steffen%sdaoden.eu> From: Ed Bradford Date: Sun, 9 Jun 2024 03:00:53 -0500 Message-ID: To: Ralph Corderoy , TUHS Main List Content-Type: multipart/alternative; boundary="000000000000b2d2b0061a707020" Message-ID-Hash: QZVFRCYM2MEJ4VNZPORBUAKIS6WG6LIY X-Message-ID-Hash: QZVFRCYM2MEJ4VNZPORBUAKIS6WG6LIY X-MailFrom: egbegb2@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: most direct Unix descendant List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: --000000000000b2d2b0061a707020 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Excellent responses here. Brings back so many great memories. My 1 cent would be to ask the question: Which of today's Unix variants (Linux, BSD, AIX, Cygwin, ...) is closest to the philosophy of the Ken-Denis-Doug versions of V6 Unix? All the variants I see today suffer from "complexification" - a John Mashey term. Documentation of commands today has grown 5 to 10 fold for each command in /usr/bin. V7 had less than 64 well documented system calls. Today's Linux, AIX, and others have how many? I don't know. The concept of producing a stream of text as the output of a program that does simple jobs well has been replaced by "power-shell" thinking of passing binary objects rather than text between program - a decidedly non-portable idea. Passing "objects" requires attaching to a dynamically linked library (that will change or even disappear with the next release of the OS or the object library). With Research Unix, I could pipe the output of a Unix program running on an Intel 486 to another program running on a Motorola 68000 or a Zilog Z80000 or an IBM AIX machine. IPhones, iPads, and my Android tablet don't have a usable text editor. All non-Unix text editors seem to struggle to offer a fixed width font. (Ever try to make columns line up on an iPhone or Android tablet?) Complexification rears its ugly head. I still use vi on both my Mac and PC (Cygwin). (I can't find a usable gvim for Mac and Macvim is weird but doesn't seem to know what a mouse is.) Unix brought automation to the forefront of possibilities. Using Unix, anyone could do it - even that kid in Jurassic Park. Today, everything is GUI and nothing can be automated easily or, most of the time, not at all. Unix is an ever shrinking oasis in a desert of non-automation and complexity. It is the loss of automation possibilities that frustrates me the most. (Don't mind me, I'm just outgassing for no good reason.) Ed On Thu, Jun 6, 2024 at 3:06=E2=80=AFPM Steffen Nurpmeso wrote: > Ralph Corderoy wrote in > <20240606095502.AD4EE210F4@orac.inputplus.co.uk>: > |There's a chart of the connections between Unix versions at > |https://en.wikipedia.org/wiki/List_of_Unix_systems, though I dislike th= e > |lack of direction given there are some arcs with little incline. > |It says it's based on https://www.levenez.com/unix/ where =C3=89ric not= es his > |chart is not limited to just source-code transfer. > > I also admire that FreeBSD and NetBSD keep on maintaining the > bsd-family-tree (and in the original form, not that dots thing, or > how it was called). So that starts with > > First Edition (V1) > | > Second Edition (V2) > | > Third Edition (V3) > | > Fourth Edition (V4) > | > Fifth Edition (V5) > | > Sixth Edition (V6) -----* > \ | > \ | > \ | > Seventh Edition (V7)----|----------------------* > \ | | > \ 1BSD | > 32V | | > \ 2BSD---------------* | > \ / | | > \ / | | > \/ | | > 3BSD | | > | | | > 4.0BSD 2.79BSD | > | | | > 4.1BSD --------------> 2.8BSD <-* > | | > 4.1aBSD -----------\ | > | \ | > 4.1bBSD \ | > | \ | > *------ 4.1cBSD --------------> 2.9BSD > / | | > Eighth Edition | 2.9BSD-Seismo > | | | > +----<--- 4.2BSD 2.9.1BSD > ... > > and says > > Multics 1965 > UNIX Summer 1969 > DEC PDP-7 > First Edition 1971-11-03 [QCU] > DEC PDP-11/20, Assembler > Second Edition 1972-06-12 [QCU] > 10 UNIX installations > Third Edition 1973-02-xx [QCU] > Pipes, 16 installations > Fourth Edition 1973-11-xx [QCU] > rewriting in C effected, > above 30 installations > Fifth Edition 1974-06-xx [QCU] > above 50 installations > Sixth Edition 1975-05-xx [QCU] > port to DEC Vax > Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] > first portable UNIX > .. > > with a nice Bibliography with falsely underscored headline plus > > URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree > > It also covers the system most of you are using (later). > > --steffen > | > |Der Kragenbaer, The moon bear, > |der holt sich munter he cheerfully and one by one > |einen nach dem anderen runter wa.ks himself off > |(By Robert Gernhardt) > --=20 Advice is judged by results, not by intentions. Cicero --000000000000b2d2b0061a707020 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Excellent responses here. Brings back so many great memories.<= /div>

My 1 cent would be to ask the question:

=C2=A0 =C2=A0Which of= today's Unix variants (Linux, BSD, AIX, Cygwin, ...) is
=C2=A0 =C2=A0= closest to the philosophy=C2=A0of the Ken-Denis-Doug versions of V6 Unix?
=
All the variants I see today suffer from "complexification"= - a John Mashey term.
Documentation of commands today has grown 5 to 10 f= old for each
command in /usr/bin. V7 had less than 64 well documented
sys= tem calls. Today's Linux, AIX, and others have how many?
I don't k= now.

The concept of producing a stream of text as the output of a pr= ogram
that does simple jobs well has been replaced by "power-shell&qu= ot; thinking
of passing binary objects rather than text between program - = a decidedly
non-portable idea.

Passing "objects" requires= attaching to a dynamically linked
library (that will change or even disa= ppear
with the next release of the OS or the object library).
With Resear= ch Unix, I could pipe the output of a Unix program
running on an Intel 486= to another program running on a Motorola
68000 or a Zilog Z80000 or an IB= M AIX machine.

IPhones, iPads, and my Android tablet don't have = a usable text editor. All
non-Unix text editors seem to struggle to offer = a fixed width font. (Ever
try to make columns line up on an iPhone or Andr= oid tablet?) Complexification
rears its ugly head.

I still use vi= on both my Mac and PC (Cygwin). (I can't find a usable gvim
for Mac a= nd Macvim is weird but doesn't=C2=A0seem=C2=A0to know what a mouse=C2= =A0is.)

Unix brought automation to the forefront of possibilities. U= sing Unix,
anyone could do it - even that kid in Jurassic Park.=C2=A0 Toda= y, everything
is GUI and nothing can
be automated easily or, most of th= e=C2=A0time, not at all.

Unix is an ever=C2=A0shrinking oasis in a d= esert of non-automation and complexity.

It is the loss of automation= possibilities=C2=A0that frustrates me the most.

(Don't mind me,= I'm just outgassing for no good reason.)

Ed

On Thu, = Jun 6, 2024 at 3:06=E2=80=AFPM Steffen Nurpmeso <steffen@sdaoden.eu> wrote:
Ralph Corderoy wrote in
=C2=A0<20240606095502.AD4EE210F4@orac.inputplus.co.uk>:<= br> =C2=A0|There's a chart of the connections between Unix versions at
=C2=A0|https://en.wikipedia.org/wiki/List_of_Uni= x_systems, though I dislike the
=C2=A0|lack of direction given there are some arcs with little incline.
=C2=A0|It says it's based on https://www.levenez.com/unix/ wher= e =C3=89ric notes his
=C2=A0|chart is not limited to just source-code transfer.

I also admire that FreeBSD and NetBSD keep on maintaining the
bsd-family-tree (and in the original form, not that dots thing, or
how it was called).=C2=A0 So that starts with

=C2=A0 First Edition (V1)
=C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 Second Edition (V2)
=C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 Third Edition (V3)
=C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 Fourth Edition (V4)
=C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 Fifth Edition (V5)
=C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 Sixth Edition (V6) -----*
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0\=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 |
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 \=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0\=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 |
=C2=A0 Seventh Edition (V7)----|----------------------*
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 \=C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 |
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0\=C2=A0 =C2=A0 =C2= =A0 =C2=A0 1BSD=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A032V=C2=A0 =C2=A0 =C2= =A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 |
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0\=C2=A0 =C2= =A0 =C2=A0 2BSD---------------*=C2=A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 \=C2=A0 =C2= =A0 /=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|= =C2=A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0\=C2= =A0 /=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = |=C2=A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 \/=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0|= =C2=A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A03BSD= =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |= =C2=A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A04.0BSD=C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 2.79BSD=C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |= =C2=A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A04.1BSD ------= --------> 2.8BSD <-*
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 4.1aBSD -----------= \=C2=A0 =C2=A0 =C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 \=C2=A0 =C2=A0 =C2=A0|=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 4.1bBSD=C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 \=C2=A0 =C2=A0|
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 \ |
=C2=A0 =C2=A0 =C2=A0 =C2=A0 *------ 4.1cBSD --------------> 2.9BSD
=C2=A0 =C2=A0 =C2=A0 =C2=A0/=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=
=C2=A0 Eighth Edition=C2=A0 =C2=A0 |=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A02.9BSD-Seismo
=C2=A0 =C2=A0 =C2=A0 =C2=A0|=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 |=
=C2=A0 =C2=A0 =C2=A0 =C2=A0+----<--- 4.2BSD=C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 =C2=A0 =C2=A0 =C2=A02.9.1BSD
=C2=A0 ...

and says

=C2=A0 Multics=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A01965
=C2=A0 UNIX=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 Summer 1969
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 DEC PDP-7
=C2=A0 First=C2=A0 =C2=A0Edition=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01971-11-0= 3 [QCU]
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 DEC PDP-11/20, Assembler
=C2=A0 Second=C2=A0 Edition=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01972-06-12 [QC= U]
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 10 UNIX installations
=C2=A0 Third=C2=A0 =C2=A0Edition=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01973-02-x= x [QCU]
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Pipes, 16 installations
=C2=A0 Fourth=C2=A0 Edition=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01973-11-xx [QC= U]
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 rewriting in C effected,
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 above 30 installations
=C2=A0 Fifth=C2=A0 =C2=A0Edition=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01974-06-x= x [QCU]
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 above 50 installations
=C2=A0 Sixth=C2=A0 =C2=A0Edition=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01975-05-x= x [QCU]
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 port to DEC Vax
=C2=A0 Seventh Edition=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A01979-01-xx [QCU] 19= 79-01-10 [TUHS]
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 first portable UNIX
=C2=A0 ..

with a nice Bibliography with falsely underscored headline plus

=C2=A0 URL: https://cgit.freebsd.org/src= /tree/share/misc/bsd-family-tree

It also covers the system most of you are using (later).

--steffen
|
|Der Kragenbaer,=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 The= moon bear,
|der holt sich munter=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0he cheerfully= and one by one
|einen nach dem anderen runter=C2=A0 wa.ks himself off
|(By Robert Gernhardt)


--
Advice is judged by results, not by intentions.
=C2=A0 Ci= cero

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