TUHS July 2017

tuhs@tuhs.org

29 participants
16 discussions

by norman＠nose.cita.utoronto.ca

I've assembled some notes from old manuals and other sources on the formats used for on-disk file systems through the Seventh Edition: http://www.cita.utoronto.ca/~norman/old-unix/old-fs.html Additional notes, comments on style, and whatnot are welcome. (It may be sensible to send anything in the last two categories directly to me, rather than to the whole list.)

2 years, 6 months

Photo of some Unix greats

by Dave Horsfall

https://en.wikipedia.org/wiki/Steven_M._Bellovin#/media/File:Usenix84_1.jpg Dennis Ritchie, Steve Bellovin, Eric Allman, Andrew Hume (I know him), Don Seeley, Mike Karels, Clem Cole... -- Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."

7 years, 3 months

Re: [TUHS] Anyone know what a LANTERN is

by Doug McIlroy

I have no actual information about the lantern character, but a tapered "storm lantern" would be far down my list of guesses. The tapered chmney would much more likely be called a "lamp", for it's a standard shape for the oil (kerosene) lamps that everyone had before electricity. My top guess would be a carriage lantern with a Japanese garden ornament as a distant second. The carriage lantern would be an unfilled circle superimposed on a vertical rectangle, filled or unfilled. The rectangle might be simplified to two (interrupted) vertical sides. An alternate form of lantern would be a side view of a carriage (or picture-projection) lantern, schematized as a box, with a flaring projection to the right--an icon for shining light on a subject, also interpretable as a movie camera. A Japanese lantern would be tripartite: cap, body, and feet. Do any of these possibilities ring a bell? Doug

7 years, 3 months

Re: [TUHS] Anyone know what a LANTERN is

by Norman Wilson

Doug McIlroy: Do any of these possibilities ring a bell? ==== More to the point, do any shed light on the matter? Norman Wilson Toronto ON

7 years, 3 months

Anyone know what a LANTERN is?

by Paul Ruizendaal

> Message: 1 > Date: Thu, 27 Jul 2017 11:58:38 -0400 > From: Random832 <random832(a)fastmail.com> > To: tuhs(a)minnie.tuhs.org > Subject: [TUHS] Anyone know what a LANTERN is? > Message-ID: > <1501171118.69633.1054588920.11864815(a)webmail.messagingengine.com> > Content-Type: text/plain; charset="utf-8" > > There is a character in the terminfo/curses alternate character set, > ACS_LANTERN, which is mapped to "i" in the VT100 alternate grapical > character set. This character is, in fact, on a real VT100/VT220 (and > therefore in most modern terminal emulators that support the full ACS), > "VT" (in 'control character picture' format, along with HT FF CR LF NL). > The ASCII mapping uses "#", and some CP437/etc mappings map it to the > double box drawing intersection character. > > Was there ever a real 'lantern' character? The manpage mentions "some > characters from the AT&T 4410v1 added". What did it look like? There's two references in the termcap manpages: http://invisible-island.net/ncurses/man/terminfo.5.html and http://invisible-island.net/ncurses/man/curs_add_wch.3x.html The second link mentions that the AT&T 4410 terminal added this glyph in the location of the VT100 VT glyph. Apparently what it looked like is lost, unless someone finds a detailed 4410 manual (or has a working one in the attic).

7 years, 3 months

Anyone know what a LANTERN is?

by Random832

There is a character in the terminfo/curses alternate character set, ACS_LANTERN, which is mapped to "i" in the VT100 alternate grapical character set. This character is, in fact, on a real VT100/VT220 (and therefore in most modern terminal emulators that support the full ACS), "VT" (in 'control character picture' format, along with HT FF CR LF NL). The ASCII mapping uses "#", and some CP437/etc mappings map it to the double box drawing intersection character. Was there ever a real 'lantern' character? The manpage mentions "some characters from the AT&T 4410v1 added". What did it look like?

7 years, 3 months

Re: [TUHS] Photo of some Unix greats

by Peter Adams

That is such a great shot! Since we are on the topic of photos… I’ve been shooting portraits of some of these same people as part of a larger photo project called Faces of Open Source. If anyone is interested in taking a look, here they are: http://facesofopensource.com -P- — Peter Adams Photography | web: http://www.peteradamsphoto.com | Instagram/twitter: @peteradamsphoto @facesopensource > On Jul 19, 2017, at 7:00 PM, tuhs-request(a)minnie.tuhs.org wrote: > > Send TUHS mailing list submissions to > tuhs(a)minnie.tuhs.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://minnie.tuhs.org/cgi-bin/mailman/listinfo/tuhs > or, via email, send a message with subject or body 'help' to > tuhs-request(a)minnie.tuhs.org > > You can reach the person managing the list at > tuhs-owner(a)minnie.tuhs.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of TUHS digest..." > Today's Topics: > > 1. Photo of some Unix greats (Dave Horsfall) > 2. Re: Photo of some Unix greats (Larry McVoy) > 3. Re: Photo of some Unix greats (Dan Cross) > > From: Dave Horsfall <dave(a)horsfall.org> > Subject: [TUHS] Photo of some Unix greats > Date: July 19, 2017 at 3:48:48 PM PDT > To: The Eunuchs Hysterical Society <tuhs(a)tuhs.org> > > > https://en.wikipedia.org/wiki/Steven_M._Bellovin#/media/File:Usenix84_1.jpg > > Dennis Ritchie, Steve Bellovin, Eric Allman, Andrew Hume (I know him), Don Seeley, Mike Karels, Clem Cole... > > -- > Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer." > > > > > From: Larry McVoy <lm(a)mcvoy.com> > Subject: Re: [TUHS] Photo of some Unix greats > Date: July 19, 2017 at 4:35:05 PM PDT > To: Dave Horsfall <dave(a)horsfall.org> > Cc: The Eunuchs Hysterical Society <tuhs(a)tuhs.org> > > > It's a cool picture, thanks. Brings back lots of memories and makes me > hate being younger than that crowd, would have loved to have been there. > I was just far enough along at that point to have a job sys admining some > of Clem's work products, 3 Masscomps. Think I was a junior in college. > > Great picture, good people. > > On Thu, Jul 20, 2017 at 08:48:48AM +1000, Dave Horsfall wrote: >> https://en.wikipedia.org/wiki/Steven_M._Bellovin#/media/File:Usenix84_1.jpg >> >> Dennis Ritchie, Steve Bellovin, Eric Allman, Andrew Hume (I know him), Don >> Seeley, Mike Karels, Clem Cole... >> >> -- >> Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer." > > -- > --- > Larry McVoy lm at mcvoy.com http://www.mcvoy.com/lm > > > > > From: Dan Cross <crossd(a)gmail.com> > Subject: Re: [TUHS] Photo of some Unix greats > Date: July 19, 2017 at 6:22:47 PM PDT > To: Dave Horsfall <dave(a)horsfall.org> > Cc: The Eunuchs Hysterical Society <tuhs(a)tuhs.org> > > > I like how Andrew Hume is defying the weather. Like a boss. > > On Wed, Jul 19, 2017 at 6:48 PM, Dave Horsfall <dave(a)horsfall.org <mailto:dave@horsfall.org>> wrote: > https://en.wikipedia.org/wiki/Steven_M._Bellovin#/media/File:Usenix84_1.jpg <https://en.wikipedia.org/wiki/Steven_M._Bellovin#/media/File:Usenix84_1.jpg> > > Dennis Ritchie, Steve Bellovin, Eric Allman, Andrew Hume (I know him), Don Seeley, Mike Karels, Clem Cole... > > -- > Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer." > > > > _______________________________________________ > TUHS mailing list > TUHS(a)minnie.tuhs.org > https://minnie.tuhs.org/cgi-bin/mailman/listinfo/tuhs

7 years, 3 months

Re: [TUHS] Filename wildcarding (was: origin of the name 'glob')

by Johnny Billquist

On 2017-07-09 23:44, ron minnich <rminnich(a)gmail.com> wrote: > On Sun, Jul 9, 2017 at 2:29 PM Dave Horsfall <dave(a)horsfall.org> wrote: >> >> I vaguely remember something like "PIP *.TXT *.OLD" to rename files (the >> "*" was interpreted by the command itself, not the interpreter). Well, that would not rename files, but copy them and at the same time changing their names. But you could also do renaming in a similar way, but usually it would require a switch to PIP telling it that you wanted the files renamed, and not copied. Also, the syntax of PIP, and the order of arguments is a bit different. At least the versions I can remember right now, it would be: PIP *.OLD=*.TXT to copy, and PIP *.OLD/RE=*.TXT to rename. And yes, it is the program who process the wildcard expansions, and not the command interpreter. Which is why commands like the ones above worked. This is one of those classical examples you get to when comparing Unix with DEC OSes about wildcarding, and the effects the different ways they are done have on the result. (In Unix, you can't do such a mass copy and rename in the same way.) > All the DEC-10 and 11 operating systems I used had that wildcard, as well > as IIRC even the PDP-8, maybe someone can confirm the -8. Yes. It's the same on the OSes I've used on PDP-8s as well. I would say that the globbing in Unix have much less to do with regular expressions and much more to do with trying to mimic what DEC was doing in their OSes. > It would have been nice had RE's been the standard way to glob files, but, > that said, when I mention .*\.c to people instead of *.c they don't much > like it. In a way, it would have made more sense to just use standard RE's for globbing, but that didn't happen. And like I said, I suspect it was because DEC OSes did it this way, and Unix just mimicked it. Same I guess with the convention of '.' to separate filename from type. Even though it's less pervasive in Unix than in DEC systems. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt(a)softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

7 years, 4 months

Re: [TUHS] origin of the name 'glob'

by Doug McIlroy

Glob was an an accident. When Ken and Dennis wanted to put wildcards (an anachronistic word--it wasn't used in the Unix lab at the time) into the shell, there wasn't room, so they came up with the clever hack of calling another process to do the work. I have always understood that glob meant global because commands like rm * would be applied to every file in a directory. A relationship to ed's g command was clear, but not primary in my mind. One curious fact is that from day one the word hase been pronounced glob, not globe. (By contrast, creat has been variously pronounced cree-at and create.) It is also interesting to speculate on whether there would be a glob library routine in Linux had glob only been an identifier in sh.c rather than an entry in /bin. I believe the simple * was borrowed from somewhere else. If the g command had been the driving model, glob would probably have had ? and ?*, not ? and *. (It couldn't use ed's . because . was ubiquitous in file names.) My etymology is somewhat different from Steve's. But I never asked the originator(s). Steve, did you? Doug

7 years, 4 months

Regular Expressions (was Re: origin of the name 'glob')

by Paul Winalski

On 7/9/17, ron minnich <rminnich(a)gmail.com> wrote: >> > All the DEC-10 and 11 operating systems I used had that wildcard, as well > as IIRC even the PDP-8, maybe someone can confirm the -8. > > It would have been nice had RE's been the standard way to glob files, but, > that said, when I mention .*\.c to people instead of *.c they don't much > like it. So when were REs first designed and implemented? I would imagine that they came about as a way to extend the old '*' and '?' wildcard syntax, but that is only a guess. -Paul W.

7 years, 4 months

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TUHS July 2017