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=-0.5 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 9cb28d8e for ; Mon, 21 Oct 2019 16:36:11 +0000 (UTC) Received: by minnie.tuhs.org (Postfix, from userid 112) id 3CA719B991; Tue, 22 Oct 2019 02:36:10 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id C7C2893D91; Tue, 22 Oct 2019 02:35:46 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="fC47zws6"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id BB5C693D91; Tue, 22 Oct 2019 02:35:43 +1000 (AEST) Received: from mail-ot1-f42.google.com (mail-ot1-f42.google.com [209.85.210.42]) by minnie.tuhs.org (Postfix) with ESMTPS id 3A29C93D8C for ; Tue, 22 Oct 2019 02:35:43 +1000 (AEST) Received: by mail-ot1-f42.google.com with SMTP id o44so11551358ota.10 for ; Mon, 21 Oct 2019 09:35:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-transfer-encoding:content-language; bh=Op6I99RwIxfWwWIkIbF4ZHKZXN5zwJDYeON7J4Fkqss=; b=fC47zws6NkHTH37ewYy3EDujoa4Yw7JeG1fDcGy079PCAOwzG2Av3rVpCibb7sFD/n G43ym524GCqqRLgG5lugWvgM6qINksTvmgEKACppUQcsPWnhEPRB90NLqvJjgRse2YLB TxWNl/v3nDFVing7JCG3zdGyybQEb+yac9GEbQC1tRKHSx3KhHiUgbjisp8DhZBUzlKe mxLGLeeEfT7pGA//jEX8IHDdzcvX9hk1zPJNY9jZDRdlV39r4bhEk0YA2R+YE6F4q5AV xXSVz5TB+OkPjJMGTIchlpp40JoQzQW/Ls+vKwYM7yEF18YGgjV8l9dB6+7exjCKR37B z6Kw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=Op6I99RwIxfWwWIkIbF4ZHKZXN5zwJDYeON7J4Fkqss=; b=Txs1yN3RYRE+tr0UogsJOl8Y+oeQJilU9CaZ9hVBoSqcmS5tLJ7XVCHWxrKeiZjFAR ncVuLWCUcDUnyKrKAHyS56+0+d94DrSDDemwXAP8lKYbnP/5hAmBA+lRhma5Ycx5w1Ei nFMhHu7cZ6Ey7jKqI8QxpdHoz2nLCVjZ4VaF4Qkel3HJkZOgg+fb4YkbK/6TmwkB3UXY G5mJnhiCWwavk+jsYYsIVA5o6tusGJ1YYi8oG+uNO3ysNpGtQILCodi+W8Qta2M7JLxO Fw3u5JmUyncV0ZSZ2Y95l8EFLAYfjrsBFZlUI8Tnoox0Z93IXeMMYr/UOVxDOBqn3Kpx GZ4Q== X-Gm-Message-State: APjAAAVTA83iVz77UtYJuBS069IGvn7jpzL4ZTZNqDqG7+YVaER8Mx/z 3TGv1DQhIpJ8fIMF6yY9ONi6hfgsf4o= X-Google-Smtp-Source: APXvYqzp3QPVhir1Ic8r6zr0/0Fa3ffE1LXz7wdufunbaMgI9g4xC8DHlrTDu+8GeHaLnBF3nmGZEg== X-Received: by 2002:a9d:66d:: with SMTP id 100mr19407470otn.302.1571675741585; Mon, 21 Oct 2019 09:35:41 -0700 (PDT) Received: from terra.local ([2001:49d0:142:1500:3078:f12a:2366:c4f9]) by smtp.gmail.com with ESMTPSA id 63sm58466oty.58.2019.10.21.09.35.40 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 21 Oct 2019 09:35:40 -0700 (PDT) To: tuhs@minnie.tuhs.org References: From: Will Senn Message-ID: Date: Mon, 21 Oct 2019 11:35:39 -0500 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:68.0) Gecko/20100101 Thunderbird/68.1.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US Subject: Re: [TUHS] TUHS Digest, Vol 47, Issue 31 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: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On 10/21/19 9:05 AM, tuhs-request@minnie.tuhs.org wrote: > Message: 17 > Date: Mon, 21 Oct 2019 08:10:00 -0400 (EDT) > From:jnc@mercury.lcs.mit.edu (Noel Chiappa) > To:tuhs@minnie.tuhs.org > Cc:jnc@mercury.lcs.mit.edu > Subject: Re: [TUHS] What was your "Aha, Unix!" moment? > Message-ID:<20191021121000.34E3B18C09F@mercury.lcs.mit.edu> > > > From: Warren Toomey > > > But wasn't "chdir" built into the PDP-7 Unix shell? > > No. See "The Evolution of the Unix Time-sharing System", in section "Process > control". > > Also, the old 'cd' had different syntax than today's (since there was no notion > of a pathname in the earliest Unix); it took instead a list of directories (e.g. > "cd dd ken"). > > Noel > Wanna have some fun? chdir system then try to find your way back 'home'... v0's subdirectories suck. -- GPG Fingerprint: 68F4 B3BD 1730 555A 4462 7D45 3EAA 5B6D A982 BAAF