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=-1.0 required=5.0 tests=MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 32606 invoked from network); 31 Dec 2021 18:23:53 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 31 Dec 2021 18:23:53 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 22BB19D03C; Sat, 1 Jan 2022 04:23:52 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id B82C09CF51; Sat, 1 Jan 2022 04:23:37 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 7CA6C9CF51; Sat, 1 Jan 2022 04:23:35 +1000 (AEST) Received: from mcvoy.com (mcvoy.com [192.169.23.250]) by minnie.tuhs.org (Postfix) with ESMTPS id 2372B9CF06 for ; Sat, 1 Jan 2022 04:23:35 +1000 (AEST) Received: by mcvoy.com (Postfix, from userid 3546) id 8D2A035E0F8; Fri, 31 Dec 2021 10:23:34 -0800 (PST) Date: Fri, 31 Dec 2021 10:23:34 -0800 From: Larry McVoy To: Dan Cross Message-ID: <20211231182334.GO31637@mcvoy.com> References: <20211230034512.B9B3718C08E@mercury.lcs.mit.edu> <97f563fa-5a17-424b-acc6-07cf127f496d@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Subject: Re: [TUHS] moving directories in svr2 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: The Eunuchs Hysterical Society Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On Fri, Dec 31, 2021 at 01:17:18PM -0500, Dan Cross wrote: > On Fri, Dec 31, 2021, 10:54 AM Adam Thornton wrote: > > > Slightly older, but also slightly more fundamental to the system, you need > > look no farther than Solaris's `/bin/sh` for an illustrated example of the > > pros and cons of maintaining backwards compatibility. [snip] > > > > Sun is not the exemplar here: the move from SunOS 4's BSD userland to > Solaris 2's SVR4 broke tons of things. They didn't seem to mind that their > customers had to pay the cost of adaptation. I was there for that and I minded like crazy. It was a hugely bad move in my opinion. Time has not changed that. > The Linux example is also a bit strange. The move from e.g. `ifconfig` and > `netstat to `ip` and `ss` required lots of local retooling I never understood why Linux did that.