/dev/chat

"is it just me or..." does anyone else in this chat room use the "New feed items" thing at the upper-left, and are you getting doubled entries in it today? Right now I have 4 questions that are repeated (1,2,3,4; 1,2,3,4)

Kusalananda

Yep

Stephen Kitt

@JeffSchaller same here

Jeff Schaller

Hurray, I'm not crazy for this reason today

Stephen Kitt

They’ve reset the matrix.

Pandya

I don't know much about Unix but I think Apple's mac os X is not based on Unix but based on XNU, right?

Stephen Kitt

5:07 PM

17

Q: Is macOS an Unix distribution?

I know that macOS is a UNIX operating system, but I don't know whether macOS could be called an UNIX distribution in the same way Gentoo or Debian are GNU/Linux distributions. Is macOS a UNIX distribution? If it isn't, how could one correctly refer to macOS' membership in the UNIX operating syst...

Prabhjot Singh

This is based on BSD, I have read somewhere.

Jeff Schaller

@StephenKitt the google-fu is strong with this one!

Prabhjot Singh

Pure Darwin OS.

Pandya

@PrabhjotSingh no, I think BSD is another thing which is based on Unix

Stephen Kitt

@JeffSchaller that was what the matrix reset was about: some of your google-fu has been transferred to me!

Pandya

5:09 PM

@StephenKitt Thanks, I think I've read it when I joined U & L but totally forgot.

Jeff Schaller

@StephenKitt outstanding! use it wisely

Prabhjot Singh

@Pandya I don't know this is related to Darwin ( I don't know pure or something ), which in turn related to BSD.

Stephen Kitt

@Pandya no, macOS is indeed based on BSD.

@JeffSchaller thanks! I’m told your editing skills have also been redistributed, but I don’t know where :-P

Pandya

openstep

I just referring:

Jeff Schaller

@StephenKitt oh deer, well i hope i can recovre

Pandya

5:11 PM

Stephen Kitt

@Pandya right, and that says that NeXTSTEP was based on 4.3BSD, and macOS is based on NeXTSTEP / OPENSTEP and NetBSD 1.3

Pandya

>macOS X has a different kernel than the original AT&T Unix - therefore calling macOS X a Unix distribution doesn't make sense. People suggest that macOS X kernel is based on FreeBSD, but to quote FreeBSD Wiki:

The XNU kernel used on OS X includes a few subsystems from (older versions of) FreeBSD, but is mostly an independent implementation

Some people mistakenly call the OS X kernel Darwin. To quote Apple's Kernel Programming Guide:

The kernel, along with other core parts of OS X are collectively referred to as Darwin. Darwin is a complete operating system based on many of the same tech…

^^ From the answer @StephenKitt linked. Thanks

let me try apple.SE chat-room

Btw, one may think they s/he may need to do payment to join Apple.SE! Haha

@StephenKitt Yes, got it.

I was misreading horizontal lines.

Faheem Mitha

Can someone tell me what criterion is used for selecting which file to view, in less *.sh?

I assume this has already been answered somewhere.

Jeff Schaller

@FaheemMitha you mean what order the shell expands *.sh?

Faheem Mitha

It doesn't matter - just idle curiousity.

@JeffSchaller Well, it seems to just select one file to view.

Regardless how many files match.

Jeff Schaller

5:22 PM

one ... at a time

Faheem Mitha

I suppose it would have to. Since less has no way to handle multiple files at once.

@JeffSchaller ?

Jeff Schaller

@FaheemMitha :n to go to the next file

(I just learned that -- I've never "lessed" multiple files)

Faheem Mitha

@JeffSchaller Oh?

Jeff Schaller

man less | grep -i next

Faheem Mitha

That's news to me. You mean it can loop through multiple files?

Jeff Schaller

5:23 PM

that's how I found out

Faheem Mitha

But what order does it view them in?

BTW, has anyone here ever bisected the kernel trying to track down what cset caused a bug/problem?

Jeff Schaller

51

A: Does the Bash star * wildcard always produce an (ascending) sorted list?

In all shells, globs are sorted by default. They were already by the /etc/glob helper called by Ken Thompson's shell to expand globs in the first version of Unix in the early 70s (and which gave globs their name). For sh, POSIX does require them to be sorted by way of strcoll(), that is using th...

Pandya

@StephenKitt Mach is independent from Unix, right?

and XNU includes Mach + BSD (which is based on Unix)

Faheem Mitha

@JeffSchaller Thank you. So less just picks the first one, I suppose?

Jeff Schaller

@FaheemMitha yes (I assume so - haven't tested)

Faheem Mitha

5:31 PM

Ok

Jeff Schaller

I don't see any options off-hand that would skip to the not-first file

hmm the "New feed items" seems to be multiply broken. there are six new questions on the site that aren't being fed in. I don't see a meta-SE question/bug on it yet...hmm

is anyone in another site's chat room, with new feed items that are (broken or working)?

Prabhjot Singh

5:51 PM

You are right. @JeffSchaller This is not working.

Kusalananda

@JeffSchaller Inherited from Vi.

Prabhjot Singh

"Unable to locate package spice-vdagent in debian" question on the site but I can't see that here.

Kusalananda

@FaheemMitha It would do, yes.

Prabhjot Singh

@Kusalananda Sometimes I get confused with vi. That this is a editor or command line.

Jeff Schaller

@PrabhjotSingh primarily an editor, but some shells have a "vi" command mode, where you can use vi commands to edit the command-line

(sorry to jump in; I see you asked Kusalananda)

Prabhjot Singh

5:56 PM

@JeffSchaller Never say this you are going to be new mod.

@JeffSchaller I got my answer.

Jeff Schaller

thank you for the vote of confidence, but I freely admit that I'm not used to how chat conversations should work. Some people continue typing text with no @ names or replies; others continue replying

I do both because I don't know :)

terdon

6:14 PM

@JeffSchaller Don't you use the chat helper script?

18

Q: Chat Reply Helper for Stack Exchange sites

Press : to start replying to a previous message. Press ↑ as many times as you need to mark the desired message. What does it do? First of all, the Chat Reply Helper for Stack Exchange sites provides a simple key combination to select a message to reply to. This removes the need to grab the...

script chrome-extensions chat greasemonkey

Jeff Schaller

@terdon I do use it; I'm trying to figure out the etiquette side; do people read the whole session, or do they only check the specific at-replies; should a 3rd person jump in to an at-reply session, etc

terdon

Ah right. In that case, you're on your own!

We're all figuring it out as we go along :)

Jeff Schaller

it is just chat, after all

so consider this an open invitation to anyone to correct my behavior towards you :)

Kusalananda

6:31 PM

@JeffSchaller I don't mind. I sometimes have to leave, and forget to check back when I get back in front of the screen, like now for example. If you had been wrong, I would have reprimanded you severely, obviously, but you weren't.

Jeff Schaller

@Kusalananda I recalled you saying today was busy, and I just can't help myself being helpful. Happy to have avoided some trouble today! :)

Kusalananda

@PrabhjotSingh It's an editor and a command line editing mode of any sh-like shell, as Jeff said. In Vi (the editor), the command for moving to the "next file" is :n or :next. Similarly, the command to switch to the previous file given on the command line is :prev or :previous.

Jeff Schaller

6:55 PM

totally random "wow" moment for me -- a HNQ (aviation) led me to:

that link was a bit of a fail; how about:

North Magnetic Pole

The North Magnetic Pole is the wandering point on the surface of Earth's Northern Hemisphere at which the planet's magnetic field points vertically downwards (in other words, if a magnetic compass needle is allowed to rotate about a horizontal axis, it will point straight down). There is only one location where this occurs, near (but distinct from) the Geographic North Pole and the Geomagnetic North Pole. The North Magnetic Pole moves over time due to magnetic changes in the Earth's core. In 2001, it was determined by the Geological Survey of Canada to lie west of Ellesmere Island in northern Canada...

specifically, the "movement of Earth's north magnetic pole across the Canadian arctic" image

"As of early 2019, the magnetic north pole is moving from Canada towards Siberia at a rate of approximately 55 km (34 miles) per year"

Jeff Schaller

7:49 PM

Freebie Kali Question/Answer at unix.stackexchange.com/q/508581/117549

derobert

@JeffSchaller Hah, its a Kali question that is actually a reasonable question. Shocking!

ilkkachu

9:41 PM

@JeffSchaller just wait, eventually the north and south poles will reverse

Kusalananda

This APT URL is interesting in many ways: https://packages.microsoft.com/repos/microsoft-debian-stretch-prod

Faheem Mitha

@JeffSchaller As long as you don't constantly ping people, it's fine. That's usually not necessary/desirable unless you are actually replying to someone. In which case, it's unavoidable, because SE chat does not have a pingless reply function.

Some people keep using @ when they aren't actually replying, which can get wearying.

I did put in a request for a pingless reply, but of course, nothing happened.

terdon

11:21 PM

@derobert it is, it is a decent Kali question!

Now why anyone would want to install powershell of all things on Kali is another question, but you can't have it all.

Faheem Mitha

Is powershell some Windows thing?

It sounds vaguely familiar.

Faheem Mitha

11:50 PM

xmonad is just a WM, right? That probably isn't relevant. Can you first check your config in pavucontrol? This isn't optimal, but you could post a screenshot. If anyone knows how to get the config given in pavucontrol as text, preferably via a command, please let me know. — Faheem Mitha 2 mins ago

I wonder if this is worth asking as a separate question. Asking people to post screenshots is obviously far from ideal. And the answer is probably quite simple.

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