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[24.113.81.134]) by smtp.gmail.com with ESMTPSA id s5sm14589609pfe.117.2022.01.17.16.53.01 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Jan 2022 16:53:02 -0800 (PST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 13.4 \(3608.120.23.2.7\)) From: Rich Morin In-Reply-To: Date: Mon, 17 Jan 2022 16:52:58 -0800 Content-Transfer-Encoding: quoted-printable Message-Id: <4DACF634-04FF-4AEB-9894-070CA2B49F0A@cfcl.com> References: To: The Unix Heritage Society mailing list X-Mailer: Apple Mail (2.3608.120.23.2.7) Subject: Re: [TUHS] BWK talk on early Unix Friday 14 January 2022 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 Jan 17, 2022, at 13:37, Nelson H. F. Beebe = wrote: >=20 > I've just watched an interesting presentation given last Friday via > video link to the Linux Conference in Australia: >=20 > Brian Kernighan > The early days of Unix at Bell Labs > https://www.youtube.com/watch?v=3DECCr_KFl41E I just watched the entire thing; great fun! I particularly liked the = part about pipes and was reminded of dmr's comment: > ... The idea, explained one afternoon on a blackboard, intrigued us = but failed to ignite any immediate action. There were several objections = to the idea as put: the infix notation seemed too radical (we were too = accustomed to typing =E2=80=98cp x y=E2=80=99 to copy x to y); and we = were unable to see how to distinguish command parameters from the input = or output files. Also, the one-input one-output model of command = execution seemed too confining. What a failure of imagination! ... -- = https://www.read.seas.harvard.edu/~kohler/class/aosref/ritchie84evolution.= pdf The closing line seems quintessentially Dennis. On a vaguely related note, I've really enjoyed using pipes in Elixir = (borrowed from F#, AFAIK). In their basic form, they carry only the = complete output of the sending function. However, there is a stream = version which works with incomplete data. Given the sparse nature of = C's design, it isn't surprising that pipelines were omitted, but it = rather surprises me not to see them in more of its successor languages. -r