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=-0.8 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI 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 32F492FF72 for ; Thu, 5 Dec 2024 19:19:25 +0100 (CET) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 414A843E30; Fri, 6 Dec 2024 04:19:21 +1000 (AEST) Received: from fout-a8-smtp.messagingengine.com (fout-a8-smtp.messagingengine.com [103.168.172.151]) by minnie.tuhs.org (Postfix) with ESMTPS id 55B8E43E2F for ; Fri, 6 Dec 2024 04:19:18 +1000 (AEST) Received: from phl-compute-12.internal (phl-compute-12.phl.internal [10.202.2.52]) by mailfout.phl.internal (Postfix) with ESMTP id 21FBC1381B65; Thu, 5 Dec 2024 13:19:17 -0500 (EST) Received: from phl-mailfrontend-02 ([10.202.2.163]) by phl-compute-12.internal (MEProxy); Thu, 05 Dec 2024 13:19:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ronnatalie.com; h=cc:cc:content-transfer-encoding:content-type:content-type :date:date:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:reply-to:subject:subject:to :to; s=fm3; t=1733422757; x=1733509157; bh=W9d7aNQqw8QBv4PpYb1x5 a+dIxv0+OLjUPkD/LjWQXI=; b=bJRpIyA2w26TAleYo1Gtk+8x7IZDuBqBDMVdP xNO+KqXvhDOLSrG2GHxNyzONjEuHf90VGkbRH6TcRWEr9knkt0wGyl30pXtrHA9v eUZ6vVJSJRbjfyBIg0EnlJ1ci9B2Az6IvPaPRQmZpLwO6xvMPmBnuVCAjfLKA9KC V9N3vXL96pWUfwY9cTRqyF5jZVpW82Glpr/JLYZDgJwIUruTT+5yGwpBnVupDLR9 qOGcKwgpVrcckHVzzB7ZDRBvAv1WgRy+6X/Tmm6Yr343BzgF1OM0DYvX6u4tCfvQ lBptDxf5FOvHSOsFPUs46hc36I5L/IRLLe9E5cRS40qrStYTw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-transfer-encoding :content-type:content-type:date:date:feedback-id:feedback-id :from:from:in-reply-to:in-reply-to:message-id:mime-version :references:reply-to:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm1; t=1733422757; x= 1733509157; bh=W9d7aNQqw8QBv4PpYb1x5a+dIxv0+OLjUPkD/LjWQXI=; b=3 HMIyDDUhX3D8nN076kiF9cQ4+kw2yrSh3lDCSu3lcE8G9UDyE/7QRvxwv6tkf9cH B5RxX+q+nAeoA9xbGeFnGfzzxcvZ1U6xOdR4Dl3bmSJN4jGn37I1N7kZGAo/sDtJ pg8Hv95P+CewTbv5SNT6JDHae4mR0QhFTmm8146iCWlBA2JfRjKDI0LVWOGyDepy ZsRbwxQwmB1bkkqBfxeNO/xvyHsnoIl803u6Mb768UBI06ei+Zsc4xF3QWfeIdpO Dn1/Vzag+Rf2psL4/PFCThbIzIwThQjilTgmownlbo1+DcxJIlZLrLP7QPP2oO/Z DRibPlJperjMMuga1zPOg== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeefuddrieejgddutdelucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdggtfgfnhhsuhgsshgtrhhisggvpdfu rfetoffkrfgpnffqhgenuceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnh htshculddquddttddmnecujfgurhephffvufevfffkjghfrhgfgggtgfesthhqredttder jeenucfhrhhomhepfdftohhnucfprghtrghlihgvfdcuoehrohhnsehrohhnnhgrthgrlh hivgdrtghomheqnecuggftrfgrthhtvghrnhepudeiieefgfdtfffgjeeuveeliefhheeu jeevudefleefjedtheejuefgudfhudeknecuvehluhhsthgvrhfuihiivgeptdenucfrrg hrrghmpehmrghilhhfrhhomheprhhonhesrhhonhhnrghtrghlihgvrdgtohhmpdhnsggp rhgtphhtthhopeegpdhmohguvgepshhmthhpohhuthdprhgtphhtthhopehjohhhnhhlse htrghughhhrdgtohhmpdhrtghpthhtoheptghrohhsshgusehgmhgrihhlrdgtohhmpdhr tghpthhtohepthhuhhhssehtuhhhshdrohhrghdprhgtphhtthhopehmrghrtgdrughonh hnvghrsehgmhgrihhlrdgtohhm X-ME-Proxy: Feedback-ID: iaba146ad:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Thu, 5 Dec 2024 13:19:16 -0500 (EST) From: "Ron Natalie" To: "John R Levine" , "Dan Cross" Date: Thu, 05 Dec 2024 18:19:16 +0000 Message-Id: In-Reply-To: <32bf4263-277d-8c8b-6bf7-e33df04a2c3c@taugh.com> References: <568FD44F-01FB-441B-846B-7D42C3A8E1FB@canb.auug.org.au> <20241205030843.8552FAB1EDA5@ary.qy> <32bf4263-277d-8c8b-6bf7-e33df04a2c3c@taugh.com> User-Agent: eM_Client/10.1.4588.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Message-ID-Hash: OFHUB7DUXXWODQ3RRD7CFK53AZDVCNPZ X-Message-ID-Hash: OFHUB7DUXXWODQ3RRD7CFK53AZDVCNPZ X-MailFrom: ron@ronnatalie.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-tuhs.tuhs.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: TUHS , Marc Donner X-Mailman-Version: 3.3.6b1 Precedence: list Reply-To: Ron Natalie Subject: [TUHS] Re: Pipes (was Re: After 50 years, what has the Impact of Unix been?) List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: I remember on MiniUnix (a stripped down kernel that would run on PDP11=E2= =80=99s=20 without memory management, in our case 11/03, 11/20, and an older 11/40)=20 there were no kernel pipes (and limited process concurrency). The shell used the aforementioned emulation of pipe by just running the=20 output of one process into a temporary file subsequently loaded as stdin=20 of the other. We kind of put all that to bed when the 11/23s came out and we could run=20 our full up kernel on the micros.