From: "Ron Natalie" <ron@ronnatalie.com>
To: "Marc Donner" <marc.donner@gmail.com>,
segaloco <segaloco@protonmail.com>
Cc: The Eunuchs Hysterical Society <tuhs@tuhs.org>
Subject: [TUHS] Re: CB-UNIX dsw(1l) Page from PDP-7?
Date: Sat, 03 Jun 2023 15:19:29 +0000 [thread overview]
Message-ID: <em94db1bec-014b-4cb7-9f44-43c4a0dbb707@2fa200a8.com> (raw)
In-Reply-To: <CALQ0xCDQUzp8spX1ZWaHYjtJznX0TXx-2eNc-XPThcFqDeb=mQ@mail.gmail.com>
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Might have been a ditto or mimeograh at some point. We had such
section 1 manuals at JHU when I was a student there in 1977.
------ Original Message ------
From "Marc Donner" <marc.donner@gmail.com>
To "segaloco" <segaloco@protonmail.com>
Cc "The Eunuchs Hysterical Society" <tuhs@tuhs.org>
Date 6/3/23, 8:59:35 AM
Subject [TUHS] Re: CB-UNIX dsw(1l) Page from PDP-7?
>Wow. I’m impressed … that pdf is clearly of an nth generation
>photocopy. What contrast ratio?
>
>More seriously, this is a delightful proof point that some cruft is
>really cruft.
>
>Your document archaeology work is entertaining and instructive. Thank
>you!
>
>Best,
>
>Marc
>=====
>On Fri, Jun 2, 2023 at 7:04 PM segaloco via TUHS <tuhs@tuhs.org> wrote:
>>While performing my CB-UNIX 2.3 manual separation, among the many
>>curious things I came across was this manual page:
>>https://www.tuhs.org/Archive/Distributions/USDL/CB_Unix/man/man1/dsw.1l.pdf
>>
>>The dsw(I) pages I've seen in the various UNIX manuals are all for the
>>interactive delete utility, but make brief mention of the history of
>>the command being amusing. I've seen some communication on the matter
>>of the years here, but had never come across a manual page for the
>>former version of dsw.
>>
>>In the linked page up there is the actual "delete from switches"
>>version of dsw. What I find particularly interesting is that the
>>footer indicates this was printed 8/11/81, but likewise indicates the
>>command is "PDP-7 local".
>>
>>This raises a couple of questions:
>>
>>- Did Columbus ever touch PDP-7 UNIX?
>>- Did dsw(I) as "delete from switches" ever make it to PDP-11 UNIX?
>>Even the V1 manual lists the "delete interactively" utility, not this.
>>- If neither are true, that begs the question of where this page came
>>from, if there was ever a formalized PDP-7 manual that it would've
>>descended from or not, etc.
>>
>>Finally, this page plainly spells out the history of the command in
>>the bugs section:
>>
>>"This command was written in 2 minutes to delete a particular file
>>that managed to get an 0200 bit in its name. It should work by
>>printing the name of each file in a specified directory and requestion
>>a 'y' or 'n' answer. Better, it should be an option of rm(1). The
>>name is mnemonic, but likely to cause trouble in the future."
>>
>>So the first bug is eventually mitigated by transforming this into the
>>more familiar dsw. I can't say what the latter means, whether it's a
>>concern of "dsw" colliding with some reserved word eventually or is
>>more poking fun at the other folk etymology of "delete s__t work".
>>
>>In any case, I hadn't seen the etymology explained to this degree in
>>the mailing list references I found while searching around, so figured
>>I'd share this analysis.
>>
>>- Matt G.
>>
>>P.S. There is mention here that Dennis Ritchie shared the original dsw
>>manpage at some point
>>https://www.tuhs.org/pipermail/tuhs/1999-November/001203.html however
>>the link in question appears to be dead. In any case, the source for
>>the PDP-7 version is in that email if anyone wants to look at it,
>>although looks to be the same as what is in the archive.
>--
>=====
>nygeek.net
>mindthegapdialogs.com/home <https://www.mindthegapdialogs.com/home>
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next prev parent reply other threads:[~2023-06-03 15:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-02 23:04 [TUHS] " segaloco via TUHS
2023-06-03 12:59 ` [TUHS] " Marc Donner
2023-06-03 15:19 ` Ron Natalie [this message]
2023-06-05 18:34 ` Random832
2023-06-05 19:30 Norman Wilson
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