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, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 27594 invoked from network); 16 Sep 2022 17:04:25 -0000 Received: from minnie.tuhs.org (50.116.15.146) by inbox.vuxu.org with ESMTPUTF8; 16 Sep 2022 17:04:25 -0000 Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id 0E3C441719; Sat, 17 Sep 2022 03:04:17 +1000 (AEST) Received: from neener.bl.org (neener.bl.org [50.116.26.109]) by minnie.tuhs.org (Postfix) with ESMTP id 9DEFC40248 for ; Sat, 17 Sep 2022 03:04:09 +1000 (AEST) Received: from neener.bl.org (localhost [127.0.0.1]) by neener.bl.org (8.15.2/8.15.2) with ESMTPS id 28GH48SI001401 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NO) for ; Fri, 16 Sep 2022 12:04:08 -0500 (CDT) Received: from localhost (mparson@localhost) by neener.bl.org (8.15.2/8.12.8/Submit) with ESMTP id 28GH48w9009106 for ; Fri, 16 Sep 2022 12:04:08 -0500 (CDT) X-Authentication-Warning: neener.bl.org: mparson owned process doing -bs Date: Fri, 16 Sep 2022 12:04:08 -0500 (CDT) From: Michael Parson To: TUHS In-Reply-To: Message-ID: <3cf3e96e-f45c-9c4d-9415-37a5d1c2aaf2@bl.org> References: <180245D1-0DCD-4C2C-A26A-EF68578FD548@canb.auug.org.au> X-Marks-The-Spot: --->X MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Message-ID-Hash: R7LEEO5WHJJMJC5TIZ56O4VFK26D2UPQ X-Message-ID-Hash: R7LEEO5WHJJMJC5TIZ56O4VFK26D2UPQ X-MailFrom: mparson@bl.org 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 X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Re: "9 skills our grandkids won't have" - Is this a TUHS topic? List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Fri, 1 Jul 2022, Matthias Bruestle wrote: > Date: Fri, 1 Jul 2022 08:17:32 > From: Matthias Bruestle > To: TUHS > Subject: [TUHS] Re: "9 skills our grandkids won't have" - Is this a TUHS > topic? > > I know something! > > On Fri, Jul 01, 2022 at 04:05:30PM +0300, Ori Idan wrote: >>> o why CTRL/S and CTRL/Q are used for flow control in a shell command >>> line session >>> >> Also would be happy to know. > > https://en.wikipedia.org/wiki/Software_flow_control > > But I don't know the answer to Ctrl-D. :( And also the bus error > and maybe the segmentation fault if it hasn't to do with a segment > register. ^D = ASCII EOT ASCII trick, check the ascii(7) manpage, look at the octal set. For any CTRL-, drop the high bit and look at that entry. D -> 104 EOT -> 004 (End of Transmission) S -> 123 DC3 -> 024 (Teletypes used this as XOFF) Q -> 121 DC1 -> 021 (Teletypes used this as XON) No one asked about these, but my favorites: @ -> 100 NUL -> 000 [ -> 133 esc -> 033 (ASCII esc) -- Michael Parson Pflugerville, TX