From mboxrd@z Thu Jan 1 00:00:00 1970 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_INVALID,DKIM_SIGNED, MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE,RDNS_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.2 Received: (qmail 10665 invoked from network); 10 Mar 2020 13:50:40 -0000 Received-SPF: pass (minnie.tuhs.org: domain of minnie.tuhs.org designates 45.79.103.53 as permitted sender) receiver=inbox.vuxu.org; client-ip=45.79.103.53 envelope-from= Received: from unknown (HELO minnie.tuhs.org) (45.79.103.53) by inbox.vuxu.org with ESMTP; 10 Mar 2020 13:50:40 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 978C393DA1; Tue, 10 Mar 2020 23:50:37 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 37E8593D29; Tue, 10 Mar 2020 23:50:06 +1000 (AEST) Authentication-Results: minnie.tuhs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=case.edu header.i=@case.edu header.b="5ld05W4+"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=case.edu header.i=@case.edu header.b="f1WeYkk+"; dkim-atps=neutral Received: by minnie.tuhs.org (Postfix, from userid 112) id 222BE93D29; Tue, 10 Mar 2020 23:50:03 +1000 (AEST) Received: from mpv1-2015.case.edu (mpv2-2015.CWRU.Edu [129.22.103.227]) by minnie.tuhs.org (Postfix) with ESMTPS id 3FD5F93D06 for ; Tue, 10 Mar 2020 23:50:02 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1583848191; bh=0v7lSEpB/bo1k/w2/Y74hzLWHX47OF7yhTDiUY7FT88=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=5ld05W4+ybu0LjBut9K/4XRdeGA7l7iJ7xQEjZk74uWCfIGoRJOoO8JZxj0F16+E23 Uc7QP5J9bCPMgGvDotx8RYEGjYE+S9zz3QOpXaAcvkErCBUP9VwfHd3K40NOv7AzFzI ILR6nXj2RDtVQSHJXIUp6AFMRUZNe423ylNsfgActW1ofJ9FpN0mToAlYa8waB4KA1X s0IdSN27f9Q13ITnYuIYoB0VV1vddyW/Fap9mnFrg5ZXSJD253pHUboPxUA52NQm8eq 7mtGStDWYWHK7V5r0J0HWKiscH6dgrgp2GhTsybcXgSjxbEfh0Km17FbQTSjf7RtgdD ixXpOE5g== Received: from mpv5-2015.CWRU.Edu (EHLO mpv5-2015.case.edu) ([129.22.103.234]) by mpv2-2015.case.edu (MOS 4.4.8-GA FastPath queued) with ESMTP id BEX86567; Tue, 10 Mar 2020 09:49:48 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=case.edu; s=smtp-primary; t=1583848188; bh=NPHhJxg0wqnORe16hVTu+1TDPT4/mCbhH7jUFi3Lk0E=; h=Reply-To:Cc:Subject:To:References:From:Message-ID:Date: MIME-Version:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=f1WeYkk+LjIWsY9pdZFBkw4tzbhh+IIT69unBtAZCecHYu4PfOhm183YTgccLCt5al haSyFEWW8c0X39MWsI7oquHznr6uPfuQ9ie4JZjgcvb62WnZSv/ZGcqMcsf4Fau4Fha 73KWxUcispgLBH5Ns8GC0wPsCOGfSpAjMfm6RBBzzoqTf5dndiRh4n7432SFiE2QldJ w3d7udVdwObfp1d3cs1cpmv38BuPtkcrBvHzfTZ90lOhJ+f2IHBnS0DJY+Lg48pd9L6 WtEcBOfv2vMPGC2RNZL8VX/3VRTNBgsabnqEGgK911DcBK709Shf5k8aerO7KycadzC WSCt6LCw== Received: from caleb.INS.CWRU.Edu (EHLO caleb.INS.CWRU.Edu) ([129.22.8.211]) by mpv5-2015.case.edu (MOS 4.4.8-GA FastPath queued) with ESMTP id DGW25465 (AUTH cpr); Tue, 10 Mar 2020 09:49:47 -0400 (EDT) To: Grant Taylor , tuhs@minnie.tuhs.org References: <20200306224431.D226C18C080@mercury.lcs.mit.edu> <1fab6a1a-ccfb-02cc-c23e-1a0d8c9e954a@spamtrap.tnetconsulting.net> From: Chet Ramey Autocrypt: addr=chet.ramey@case.edu; prefer-encrypt=mutual; keydata= mQGiBEEOsGwRBACFa0A1oa71HSZLWxAx0svXzhOZNQZOzqHmSuGOG92jIpQpr8DpvgRh40Yp AwdcXb8QG1J5yGAKeevNE1zCFaA725vGSdHUyypHouV0xoWwukYO6qlyyX+2BZU+okBUqoWQ koWxiYaCSfzB2Ln7pmdys1fJhcgBKf3VjWCjd2XJTwCgoFJOwyBFJdugjfwjSoRSwDOIMf0D /iQKqlWhIO1LGpMrGX0il0/x4zj0NAcSwAk7LaPZbN4UPjn5pqGEHBlf1+xDDQCkAoZ/VqES GZragl4VqJfxBr29Ag0UDvNbUbXoxQsARdero1M8GiAIRc50hj7HXFoERwenbNDJL86GPLAQ OTGOCa4W2o29nFfFjQrsrrYHzVtyA/9oyKvTeEMJ7NA3VJdWcmn7gOu0FxEmSNhSoV1T4vP2 1Wf7f5niCCRKQLNyUy0wEApQi4tSysdz+AbgAc0b/bHYVzIf2uO2lIEZQNNt+3g2bmXgloWm W5fsm/di50Gm1l1Na63d3RZ00SeFQos6WEwLUHEB0yp6KXluXLLIZitEJLQgQ2hldCBSYW1l eSA8Y2hldC5yYW1leUBjYXNlLmVkdT6IYQQTEQIAIQIbAwYLCQgHAwIDFQIDAxYCAQIeAQIX gAUCRX3FIgIZAQAKCRC7WGnwZOp0q069AKCNDRn+zzN/AHbaynls/Lvq1kH/RQCgkLvF8bDs maUHSxSIPqzlGuKWDxa5AQ0EQQ6wbxAEAJCukwDigRDPhAuI+lf+6P64lWanIFOXIndqhvU1 3cDbQ/Wt5LwPzm2QTvd7F+fcHOgZ8KOFScbDpjJaRqwIybMTcIN0B2pBLX/C10W1aY+cUrXZ gXUGVISEMmpaP9v02auToo7XXVEHC+XLO9IU7/xaU98FL69l6/K4xeNSBRM/AAMHA/wNAmRB pcyK0+VggZ5esQaIP/LyolAm2qwcmrd3dZi+g24s7yjV0EUwvRP7xHRDQFgkAo6++QbuecU/ J90lxrVnQwucZmfz9zgWDkT/MpfB/CNRSKLFjhYq2yHmHWT6vEjw9Ry/hF6Pc0oh1a62USdf aKAiim0nVxxQmPmiRvtCmYhJBBgRAgAJBQJBDrBvAhsMAAoJELtYafBk6nSr43AAn2ZZFQg8 Gs/zUzvXMt7evaFqVTzcAJ0cHtKpP1i/4H4R9+OsYeQdxxWxTQ== Message-ID: <178d5ef9-b188-ad63-2dc3-ff51541f6dc9@case.edu> Date: Tue, 10 Mar 2020 09:49:39 -0400 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <1fab6a1a-ccfb-02cc-c23e-1a0d8c9e954a@spamtrap.tnetconsulting.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Mirapoint-IP-Reputation: reputation=Neutral-1, source=Queried, refid=tid=0001.0A020302.5E679AF3.0099, actions=tag X-Mirapoint-IP-Reputation: reputation=good-1, source=Fixed, refid=n/a, actions=tag X-Junkmail-Status: score=9/80, host=mpv2-2015.case.edu X-Junkmail-PrAS-Raw: score=9/80, refid=2.7.2:2020.3.10.130618:17:9.975, ip=, rules=DKIM_SIGNATURE, __HAS_REPLYTO, __HAS_CC_HDR, __SUBJ_REPLY, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __SUBJ_ALPHA_END, __TO_MALFORMED_2, __MULTIPLE_RCPTS_TO_X2, __TO_NAME, __TO_NAME_DIFF_FROM_ACC, __HAS_REFERENCES, __REFERENCES, __HAS_FROM, FROM_EDU_TLD, __HAS_MSGID, __SANE_MSGID, DATE_TZ_NA, __USER_AGENT, __MOZILLA_USER_AGENT, __MIME_VERSION, __IN_REP_TO, __CT, __CT_TEXT_PLAIN, __CTE, __REPLYTO_SAMEAS_FROM_ADDY, __REPLYTO_SAMEAS_FROM_ACC, __FROM_DOMAIN_IN_ANY_CC1, __FROM_DOMAIN_IN_ANY_CC2, __TO_IN_SUBJECT2, __REPLYTO_SAMEAS_FROM_DOMAIN, __DKIM_ALIGNS_1, __DKIM_ALIGNS_2, __ANY_URI, __URI_MAILTO, __URI_WITH_PATH, __URI_ENDS_IN_SLASH, __URI_NO_WWW, __CP_URI_IN_BODY, __SUBJ_ALPHA_NEGATE, __URI_IN_BODY, __URI_NOT_IMG, __MAIL_CHAIN, __FORWARDED_MSG, __BODY_NO_MAILTO, __NO_HTML_TAG_RAW, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_500_599, __MIME_TEXT_P1, [TRUNCATED], so=2010-03-03 19:42:08, dmn=2016-08-03-0138 Subject: Re: [TUHS] First appearance of named pipes 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: , Reply-To: chet.ramey@case.edu Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" On 3/9/20 7:22 PM, Grant Taylor via TUHS wrote: > On 3/6/20 3:44 PM, Noel Chiappa wrote: >> a pipe is a FIFO. > > Hum.... > > Does that mean that I should be able to replace pipes in my shell commands > with a collections of FIFOs?  Yes, absolutely. Just like a pipe is a FIFO, a FIFO is just a pipe with a name that appears in the file system. -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/