From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from minnie.tuhs.org (minnie.tuhs.org [45.79.103.53]) by inbox.vuxu.org (OpenSMTPD) with ESMTP id 06e5bc28 for ; Mon, 21 Oct 2019 11:58:50 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 39C919B8DD; Mon, 21 Oct 2019 21:58:49 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 22F4493DB1; Mon, 21 Oct 2019 21:58:32 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 13CF793D91; Mon, 21 Oct 2019 21:58:31 +1000 (AEST) Received: from mercury.lcs.mit.edu (mercury.lcs.mit.edu [18.26.0.122]) by minnie.tuhs.org (Postfix) with ESMTPS id B604293D8C for ; Mon, 21 Oct 2019 21:58:30 +1000 (AEST) Received: by mercury.lcs.mit.edu (Postfix, from userid 11178) id C05FB18C09F; Mon, 21 Oct 2019 07:58:29 -0400 (EDT) To: tuhs@tuhs.org Message-Id: <20191021115829.C05FB18C09F@mercury.lcs.mit.edu> Date: Mon, 21 Oct 2019 07:58:29 -0400 (EDT) From: jnc@mercury.lcs.mit.edu (Noel Chiappa) Subject: Re: [TUHS] PDP-7 UNIX filesystem 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: jnc@mercury.lcs.mit.edu Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" > From: Abhinav Rajagopalan > I only now realized that only mknod existed, up until a long time, only > later on with the GNU coreutils did mkdir as a command come into > existence. Huh? See: https://minnie.tuhs.org//cgi-bin/utree.pl?file=V6/usr/man/man1/mkdir.1 (And probably before that, that was the quickest one to find?) Maybe that was a typo for 'mkdir as a system call'? (I recall having to do a fork() to execute 'mkdir', back when.) But 4.2 had mkdir(). Noel