/dev/chat - 2016-02-12

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3:10 AM

Hey guys, sorry for an off topic question

In English, does "A is also B" mean "B is A"?

3:43 AM

I wouldn't say so in general @cuonglm -- a dog is also fluffy but not all fluffy things are dogs

4:39 AM

Can someone help me out with the DD command

I have read several posts and the man page, but I still don't understand how it works when trying to do a read/write test

5:10 AM

@DrKumar instead of asking if someone can help you it is much better to just ask your specific problem, and then those that can help will :)

5:31 AM

Neat. I have a different issue now, I've given up on the read/write testing for the moment

(thanks also)

Question: I think I screwed up a USB flash drive, and diskutil (on mac) is listing it as just the raw disk, no partitions

Is it bad that it has no partition scheme?

OS X seems to see it just fine, read/writes just fine

err

   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *8.1 GB     disk2
   1:                  USBDRIVE                                8.1 GB     disk2s1

and the screwed up drive looks like this

   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                            HPUSB                  *8.0 GB     disk2

5:54 AM

Phew, I used diskutil partitionDisk and it worked!

is there any way to have dd list the bytes/sec output in something other than pure bytes?

eg. kb?

2 hours later…

8:03 AM

Hey, when using diskutil list like above, what does the asterisk mean next to its size?

@JeffSchaller: That's also what I think, but I have some conflict with @BinaryZebra in this answer unix.stackexchange.com/a/261421/38906

I comments "subshell is also a child shell", then he think I mean "child shell is also subshell"

2 hours later…

user149342

9:58 AM

@cuonglm Your understanding of the words is flawed. If two books could be either green or blue (and no other color). What is implied by saying: book A is also green?: easy, that book B is also green. But that is not the real problem.

@BinaryZebra: Please wait for @Gilles answering this comment unix.stackexchange.com/questions/261638/…

user149342

10:14 AM

@cuonglm It is you who is raising the issue here (and with my name). Bye.

12:41 PM

@cuonglm I have no idea what you're on about here. A subshell is a shell that's a child, so you can call it a child shell. A child shell is not necessarily a subshell, e.g. it can be a script that's started by another shell, or a shell executed with sh -c …. And I have no idea what this has to do with “also” or with green books @BinaryZebra .

1 hour later…

2:07 PM

where is that meta Q about answers that are just a comparison of other answers?

2:49 PM

@Braiam Can you elaborate?

@FaheemMitha found it meta.unix.stackexchange.com/q/3379/41104

user image

In the spirit of posting random things. Other people do it - why can't I?

3 hours later…

user149342

6:14 PM

@Gilles The issue is (I hope it is *was*) that cuonglm made a comment stating that my answer was wrong because "a subshell is also a child-shell". As I understand it, there are two types of "child processes" which happen to run a shell: subshells and full child shells. A process is either one of those, not both.

Despite me offering this data points to @cuonglm:

Bash does not call a ```bash -c``` a subshell:
echo "$BASH_SUBSHELL"; (echo $BASH_SUBSHELL); bash -c 'echo "$BASH_SUBSHELL"'

The last paragraph of [Wooledge Subshell](http://mywiki.wooledge.org/SubShell) say:

Anonymous

Hello, all. I am on a Debian system, and need, what I am guessing to be, a specific version of a package installed

Anonymous

Right now, I have the file libvpx2.so.3, but I need libvpx2.so.2 -- how do I get the latter?

6:30 PM

@onebree Which release/version?

Anonymous

Debian 8.3 Jessie

This package also looks like it is only on a nonstandard arch.

My system doesn't know about it.

powerpcspe, to be precise.

Anonymous

I installed the package when installing Free Switch. I am waiting to hear back from the IRC room on thoughts about this

If it really is on a nonstandard arch, it would be difficult for people to help you without more information. And I don't know what Free Switch is.

Anonymous

Okay, thank you.

9:18 PM

This profile pic is very familiar:

51 1

command-line linux shell

@muru I think I'm being haunted.

@FaheemMitha the ghost's name isn't mikeserv by any chance?

@muru It might be.

A higher resolution mikeserv, at any rate. :D

1 3 38 100

bash shell-script text-processing sed shell awk grep

@muru You have sharper eyes than I do.

9:21 PM

Just seems sharper. Or my eyes are deceiving me. :)

You always up this late, Faheem? O.o

(not that it's any of my business)

@muru Unfortunately, more often than I should.

How about you?

I should have slept by now going by the last couple of days, but there's a cycling trip at 5 AM. There's no way I'll wake up at 5 if I sleep now.

@muru You're going cycling at 5 am. Wow, that's... brave.

Where are you going?

@FaheemMitha Trip. The campus cycling club is organizing it, to Sanjay Gandhi national park. Not all that brave when you can expect at least a dozen people around you. :)

@muru Hmm. Well, have a fun time. Try not to fall off your bike.

9:28 PM

@FaheemMitha never as easy as it sounds! :D

@muru I'm sure it isn't.

Btw, consider that earlier lunch invitation an open invitation, in case you ever happen to find yourself in South Bombay.

@muru I see you're a Southerner. Do you ever go back to Kerala?

I don't know many Southerners, but most of the people I've met from Kerala I've liked.

9:49 PM

@FaheemMitha about once a year.

@muru Do you have family there?

@FaheemMitha Mum has two sisters, Dad has four sisters and a brother. So plenty of cousins. :D

@FaheemMitha I don't know why I, but I think you're Parsi

Did you tell me that, or did my mind just make it up?

@muru Ok, now that's funny.

You might be the thousandth person who thinks I'm Parsi. And you've never met me!

And no, I'm not Parsi.

@FaheemMitha your name, I suppose. :D

@muru Hmm. Which part?

So, how do you like Kerala?

9:56 PM

All of it? No idea. It's the only thing I know of you. Kerala looks like a nice place to retire to, or at least the parts I visit most often.

I would get bored soon.

@FaheemMitha You are a native of Bombay?

Well, it's probably nicer than Maharashtra. Which is something of a disaster zone, I believe.

@muru I was born and grew up here, yes.

s/born and/ for me.

That happened in Kerala. The rest here.

@muru Are you sure you got that substitution right? :-)

Oh, forgot the traling /. :D

@muru Btw, your English is less terrible than the Indian average. I guess you read a lot? Btw, I like Nineteen Eighty Four and Great Expectations too. I was just looking at your blog, and thought it was funny you mentioned two of my favorite books.

10:02 PM

Less terrible, but not good? I have a ways to go, then.

@muru Well, I haven't talked to you enough to know. It wasn't intended as an insult...

@FaheemMitha Which others? What would be your top N?

@FaheemMitha ah, I didn't take it as one. It just reminded me of something.

@muru What, books? That would be hard. For one thing, I can't remember all the books I've read.

I tend to compartmentalize them. So, I forget all about them till something reminds me of them.

@FaheemMitha It reminded me of a chat I had long ago: chat.stackexchange.com/transcript/message/26543512#26543512

@FaheemMitha What about genres?

Then I tend to quote from them. If you want people in India looking at you oddly, quote stuff to them.

@muru Relatively diverse. I used to read a lot of sf and fantasy when I was younger. These days I don't really have strong preferences.

Great Expectations is an amazing novel. But I don't suppose many people read Dickens these days.

10:07 PM

True. Fantasy all the rage.

@muru If you want, I could produce a random list of writers I've read something of. Would that help?

@FaheemMitha I doubt it.

Ah, yes, Mitch.

@FaheemMitha talking to yourself? O.o

Oh. That Mitch.

I remember having a conversation with him when he quoted chapter and verse from the Silmarillion, apparently from memory. Now, that's one serious Tolkien fan.

@muru No.

@muru Well, it wouldn't be that random.

10:09 PM

If it's not good enough to feed /dev/random, it is good enough for me!

Ok, Dickens, David Lodge, HG Wells, Bertrand Russell, Noam Chomsky, Nevil Shute, Diana Wynne Jones, Gerald Durrell, George Orwell (Eric Blair).

That's might be like 10% of my reading right there.

As you can see, that's a pretty mixed bag.

If you looked at my reading list over the decades, it looks like the reading of half a dozen different people, randomly mixed up.

So, that's Lodge, Chomsky, Shute, and Jones that I haven't read at all, and of those, I have only heard of Chomsky.

Dickens was a very powerful writer. I think people perhaps tend to underrate him because he was so popular. Not any more, though.

@muru Ah, well. There are a lot of writers. Though everyone I've mentioned there are well known in their respective fields. Chomsky in his areas of interest is of course one of the most famous people on the planet.

Neither Orwell or Russell are exactly obscure, though. I haven't read Russell much at all in a long time, but I read him a lot as a child.

DWJ is a very famous children's writer.

Do you still read a lot?

Nevil Shute was one of the best selling authors in English in the 1960s. He's not exactly obscure.

@muru Not so much, I think.

There are other things to do.

I do it if I want to tune out. Which happens quite regularly.

Gerald Durrell is/was a very famous naturalist.

David Lodge is a well known English novelist.

HG Wells was very very famous around a century ago. Now people mostly just read his sf.

10:18 PM

@FaheemMitha Durrell got into the English textbooks here. :D

@muru Oh? Which ones?

@FaheemMitha the Maharashtra state ninth or tenth standard ones, about a decade ago.

A chapter from his My Family and Other Animals.

@muru Oh, I see.

@muru Ah, yes.

I'm guessing the spider in the matchbox. That seems to be a popular one.

@FaheemMitha Achilles the tortoise

@muru Oh.

@muru Chomsky is well worth reading if you have never read him. Though he's not a fun read. He's basically a mind-expanding drug, except legal.

Check out "Understanding Power". A very good read.

10:24 PM

@FaheemMitha amazon.in/Understanding-Power-Noam-Chomsky/dp/0143029916/…?

Would that be the one?

@muru Yes, that one.

I've described it to people as possibly the most interesting book I've ever read.

@FaheemMitha even if I don't know you all that well, that is a high standard.

I know few who would say that about anything they read.

@muru I suppose it is.

@muru You should see my copy of that book. Well read doesn't begin to describe it.

@FaheemMitha I can imagine that. I guess my copy of War and Peace looks the same. (If only because it is large and hard to handle.)

@muru Oh. You're a Tolstoy fan? :-)

10:29 PM

Of War and Peace and some of his short stories.

Anyway, I've found reading Chomsky very very educational. Strongly recommended.

@muru I don't know Tolstoy at all, really. Though I've skimmed enough of his stuff to get a flavor of it. Very moralistic. Also, didn't like Napoleon at all, if I recall correctly.

Take those as throwaway remarks...

Anyway, sleep time, probably. Take care, muru. Have a fun ride.

@FaheemMitha Ordered. I have been reading ebooks for a couple of months now. Maybe this one will help me kick the habit.

@FaheemMitha Thanks, you too!

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