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Case sensitive file system?

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  Case sensitive file system? Siri Cruz <chine.bleu@yahoo.com> - 2014-02-15 19:08 -0800
    Re: Case sensitive file system? Ian Collins <ian-news@hotmail.com> - 2014-02-16 16:15 +1300
    Re: Case sensitive file system? Kaz Kylheku <kaz@kylheku.com> - 2014-02-16 03:19 +0000
    Re: Case sensitive file system? Jolly Roger <jollyroger@pobox.com> - 2014-02-16 03:29 +0000
      Re: Case sensitive file system? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2014-02-16 01:01 -0500
        Re: Case sensitive file system? Barry Margolin <barmar@alum.mit.edu> - 2014-02-16 02:14 -0500
          Re: Case sensitive file system? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2014-02-16 16:56 -0500
        Re: Case sensitive file system? Jolly Roger <jollyroger@pobox.com> - 2014-02-16 15:53 +0000
          Re: Case sensitive file system? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2014-02-16 17:01 -0500
      Re: Case sensitive file system? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2014-02-16 06:08 +0000
        Re: Case sensitive file system? Jolly Roger <jollyroger@pobox.com> - 2014-02-16 15:49 +0000
    Re: Case sensitive file system? David Ritz <dritz@mindspring.com> - 2014-02-15 22:28 -0600
    Re: Case sensitive file system? Lewis <g.kreme@gmail.com.dontsendmecopies> - 2014-02-16 06:05 +0000
      Re: Case sensitive file system? Alan Browne <alan.browne@FreelunchVideotron.ca> - 2014-02-16 09:18 -0500
    Re: Case sensitive file system? Michael Vilain <vilain@NOspamcop.net> - 2014-02-15 23:28 -0800
      Re: Case sensitive file system? Siri Cruz <chine.bleu@yahoo.com> - 2014-02-16 04:24 -0800
      Re: Case sensitive file system? Alan Browne <alan.browne@FreelunchVideotron.ca> - 2014-02-16 09:17 -0500
      Re: Case sensitive file system? Kaz Kylheku <kaz@kylheku.com> - 2014-03-02 18:19 +0000
        Re: Case sensitive file system? Michael Vilain <vilain@NOspamcop.net> - 2014-03-02 12:37 -0800
          Re: Case sensitive file system? JF Mezei <jfmezei.spamnot@vaxination.ca> - 2014-03-02 20:23 -0500
            Re: Case sensitive file system? scott@slp53.sl.home (Scott Lurndal) - 2014-03-03 15:06 +0000
              Re: Case sensitive file system? Casper H.S. Dik <Casper.Dik@OrSPaMcle.COM> - 2014-03-03 15:10 +0000
                Re: Case sensitive file system? scott@slp53.sl.home (Scott Lurndal) - 2014-03-03 16:59 +0000
              Re: Case sensitive file system? Tim Streater <timstreater@greenbee.net> - 2014-03-03 15:18 +0000

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#56572 — Case sensitive file system?

Is there a simple way in a program to see if a file system uses case sensitive 
names (like traditional Unix) or case irrelevant (like plain old HFS+)?

-- 
:-<> Siri Seal of Disavowal #000-001. Disavowed. Denied. Deleted.
'I desire mercy, not sacrifice.'

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#56573

Siri Cruz wrote:
> Is there a simple way in a program to see if a file system uses case sensitive
> names (like traditional Unix) or case irrelevant (like plain old HFS+)?

If open "ZZ? fails, create "zz" and try to open "ZZ"?

-- 
Ian Collins

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#56574

On 2014-02-16, Siri Cruz <chine.bleu@yahoo.com> wrote:
> Is there a simple way in a program to see if a file system uses case sensitive 
> names (like traditional Unix) or case irrelevant (like plain old HFS+)?

Make a temporary directory in that filesystem, and there create a file "fOO" or
some such mixed-case identifier. If you can open it as "foo", the system is
case-insensitive.  Then list the directory. If the name lists as "fOO", then it
is case-preserving. If it appears as "foo" or "FOO", it is case folding.

Is there are nondestructive way to just find out this info? I don't think
so. There is nothing *standard* out of pathconf or fstat.

Mac OS/Darwin evidently has a _PC_CASE_SENSITIVE constant that can be used with
pathconf. You could detect this in a C program with #ifdef to implement the
test more efficiently. It appears there is also a _PC_CASE_PRESERVING.

I'd detect these individually to short-circuit the relevant parts of the logic,
such that if both are provided, then no temporary modification of the
filesystem takes place.

-- 
Music DIY Mailing List: http://www.kylheku.com/diy
ADA MP-1 Mailing List:  http://www.kylheku.com/mp1

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#56575

On 2014-02-16, Siri Cruz <chine.bleu@yahoo.com> wrote:
>
> Is there a simple way in a program to see if a file system uses case
> sensitive names (like traditional Unix) or case irrelevant (like plain
> old HFS+)?

This command will tell you whether or not the boot device is
case-sensitive:

# diskutil info `df / | sed -e /Filesystem/d | awk '{print $1}'` | grep
"Personality" 

   File System Personality:  Journaled HFS+

If it's case-sensitive, it will say: "Case-sensitive Journaled HFS+".
Otherwise it will just say: "Journaled HFS+".

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

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#56577

On 14-02-15 22:29, Jolly Roger wrote:

> # diskutil info `df / | sed -e /Filesystem/d | awk '{print $1}'` | grep
> "Personality" 

Can you explain the `df ?

Bash doesn't take kindly to unclosed quotes (or in this case grave accent)

Can you explain what the sed -e /Filesystem/d  does ? and why the awk to
print the lines ?





>    File System Personality:  Journaled HFS+

Snow Leopard Server:


   File System:              Journaled HFS+
   Type:                     hfs
   Name:                     Mac OS Extended (Journaled)
   Journal:                  Journal size 81920 KB at offset 0x1d1c000
   Owners:                   Enabled

So the word "Personality" may not be standard across all
platfiorms/versions.

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#56580

In article <5300541d$0$22469$c3e8da3$f6268168@news.astraweb.com>,
 JF Mezei <jfmezei.spamnot@vaxination.ca> wrote:

> On 14-02-15 22:29, Jolly Roger wrote:
> 
> > # diskutil info `df / | sed -e /Filesystem/d | awk '{print $1}'` | grep
> > "Personality" 
> 
> Can you explain the `df ?

This runs df /, which prints information about the root filesystem, 
removes the heading line, then uses awk to get the first column, which 
is the disk device that the filesystem is mounted on. The backticks 
substitute the output of that command into the original command line.

On my system

df / | sed -e /Filesystem/d | awk '{print $1}'

prints:

/dev/disk0s2

so it's equivalent to:

# diskutil info /dev/disk0s2 | grep "Personality"

> 
> Bash doesn't take kindly to unclosed quotes (or in this case grave accent)

It's not unclosed. You can have multiple commands inside backticks. The 
closing backtick is after the awk command.

> 
> Can you explain what the sed -e /Filesystem/d  does ? and why the awk to
> print the lines ?

"sed -e /Filesystem/d" deletes all lines that contain Filesystem, i.e. 
the heading line that df prints.

"awk '{print $1}'" prints the first field of each line.

> 
> 
> 
> 
> 
> >    File System Personality:  Journaled HFS+
> 
> Snow Leopard Server:
> 
> 
>    File System:              Journaled HFS+
>    Type:                     hfs
>    Name:                     Mac OS Extended (Journaled)
>    Journal:                  Journal size 81920 KB at offset 0x1d1c000
>    Owners:                   Enabled
> 
> So the word "Personality" may not be standard across all
> platfiorms/versions.

-- 
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

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#56614

On 14-02-16 02:14, Barry Margolin wrote:

>> > # diskutil info `df / | sed -e /Filesystem/d | awk '{print $1}'` | grep
>> > "Personality" 

> On my system
> 
> df / | sed -e /Filesystem/d | awk '{print $1}'
> 
> prints:
> 
> /dev/disk0s2
> 

Thanks for explanation. I had not noticed the closing ` after the awk
command and was trying to mentally parse the command sequentially and
trying diskutil info 'df  thinking its output was going to the sed
command etc etc.

Learn something new everyday.

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#56598

On 2014-02-16, JF Mezei <jfmezei.spamnot@vaxination.ca> wrote:
> On 14-02-15 22:29, Jolly Roger wrote:
>
>> # diskutil info `df / | sed -e /Filesystem/d | awk '{print $1}'` | grep
>> "Personality" 
>
> Can you explain the `df ?
>
> Bash doesn't take kindly to unclosed quotes (or in this case grave accent)
>
> Can you explain what the sed -e /Filesystem/d  does ? and why the awk to
> print the lines ?

Barry explained sufficiently. Though, as Lewis mentioned, since
diskutil info accepts file system paths (such as /), all of this is
overkill. (Thanks again, Lewis.)

>>    File System Personality:  Journaled HFS+
>
> Snow Leopard Server:
>
>
>    File System:              Journaled HFS+
>    Type:                     hfs
>    Name:                     Mac OS Extended (Journaled)
>    Journal:                  Journal size 81920 KB at offset 0x1d1c000
>    Owners:                   Enabled
>
> So the word "Personality" may not be standard across all
> platfiorms/versions.

So, instead use:

# diskutil info / | grep "File System"

   File System Personality:  Journaled HFS+

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

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#56615

On 14-02-16 10:53, Jolly Roger wrote:

> Barry explained sufficiently. Though, as Lewis mentioned, since
> diskutil info accepts file system paths (such as /), all of this is
> overkill. (Thanks again, Lewis.)


You can also specify mount points such as /volumes/mydisk

For instance, on my server / and /volumes/DMA1 produce the same diskutil
info output, and I can specify other disks on the system.

(I realise that consumer Macs only have 1 disk, but Macpros and Xserves
have multiple drives).

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#56579

In message <bmapkvFsm3rU1@mid.individual.net> 
  Jolly Roger <jollyroger@pobox.com> wrote:
> On 2014-02-16, Siri Cruz <chine.bleu@yahoo.com> wrote:
>>
>> Is there a simple way in a program to see if a file system uses case
>> sensitive names (like traditional Unix) or case irrelevant (like plain
>> old HFS+)?

> This command will tell you whether or not the boot device is
> case-sensitive:

> # diskutil info `df / | sed -e /Filesystem/d | awk '{print $1}'` | grep
> "Personality" 

>    File System Personality:  Journaled HFS+

$ diskutil info / | grep " HFS"
   File System Personality:  Journaled HFS+

-- 
'Vetinari isn't mad.' 'Depends how you look at it. No one can be as sane
as he is without being mad.' --Feet of Clay

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#56597

On 2014-02-16, Lewis <g.kreme@gmail.com.dontsendmecopies> wrote:
> In message <bmapkvFsm3rU1@mid.individual.net> 
>   Jolly Roger <jollyroger@pobox.com> wrote:
>> On 2014-02-16, Siri Cruz <chine.bleu@yahoo.com> wrote:
>>>
>>> Is there a simple way in a program to see if a file system uses case
>>> sensitive names (like traditional Unix) or case irrelevant (like plain
>>> old HFS+)?
>
>> This command will tell you whether or not the boot device is
>> case-sensitive:
>
>> # diskutil info `df / | sed -e /Filesystem/d | awk '{print $1}'` | grep
>> "Personality" 
>
>>    File System Personality:  Journaled HFS+
>
> $ diskutil info / | grep " HFS"
>    File System Personality:  Journaled HFS+

Ah, cool. Didn't realize diskutil info took a fil system path. Even better.

Thanks.

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

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#56576

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Hash: SHA1

On Saturday, 15 February 2014 19:08 -0800, 
 in article <chine.bleu-1E20C5.19082615022014@news.eternal-september.org>, 
 Siri Cruz <chine.bleu@yahoo.com> wrote:

> Is there a simple way in a program to see if a file system uses case 
> sensitive names (like traditional Unix) or case irrelevant (like 
> plain old HFS+)?

$ diskutil info disk0s2 | grep File
   File System Personality:  Journaled HFS+

- -- 
David Ritz <dritz@mindspring.com>
 Be kind to animals; kiss a shark.

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#56578

In message <chine.bleu-1E20C5.19082615022014@news.eternal-september.org> 
  Siri Cruz <chine.bleu@yahoo.com> wrote:
> Is there a simple way in a program to see if a file system uses case sensitive 
> names (like traditional Unix) or case irrelevant (like plain old HFS+)?

touch test; touch TEST; ls -1rt

two files = case sensitive.

You can also look in Disk Utility.

-- 
Dinner will be ready when the smoke alarm goes off.

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#56592

On 2014.02.16, 01:05 , Lewis wrote:
> In message <chine.bleu-1E20C5.19082615022014@news.eternal-september.org>
>    Siri Cruz <chine.bleu@yahoo.com> wrote:
>> Is there a simple way in a program to see if a file system uses case sensitive
>> names (like traditional Unix) or case irrelevant (like plain old HFS+)?
>
> touch test; touch TEST; ls -1rt
>
> two files = case sensitive.
>
> You can also look in Disk Utility.

My first reaction was to open Disk Utility which shows (under the 'info' 
button) "Mac OS Extended (Journaled, Encrypted)" and I'm not sure at all 
that is indicative of case insensitivity.  Is it?

-- 
   Privacy has become an essential personal chore that most
   people are not trained to perform.
                  - Jaron Lanier, Scientific American, 2013.11.

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#56581

In article 
<chine.bleu-1E20C5.19082615022014@news.eternal-september.org>,
 Siri Cruz <chine.bleu@yahoo.com> wrote:

> Is there a simple way in a program to see if a file system uses case 
> sensitive 
> names (like traditional Unix) or case irrelevant (like plain old HFS+)?

I've recently discovered this thing on the web. It's called Google and 
it's replaced my CRC Handbook, my Sun Tech manuals, and my old DEC 
manuals.  I asked this question at the Google prompt and this came back.

http://apple.stackexchange.com/questions/71357/how-to-check-if-my-hd-is-c
ase-sensitive-or-not

-- 
DeeDee, don't press that button!  DeeDee!  NO!  Dee...
[I filter all Goggle Groups posts, so any reply may be automatically ignored]

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#56586

In article <vilain-A30470.23285415022014@news.individual.net>,
 Michael Vilain <vilain@NOspamcop.net> wrote:

> I've recently discovered this thing on the web. It's called Google and 

Odd but since Google doesn't actually have a human interpretting the query, all 
it takes is slightly off query and it's useless, no matter how many hours you 
spend on it.

I remember once spending a day trying to find out how to record screen audio 
with screen video, only reading I would need a mic out to sound in 
amplifier/cable. Tried again and now there's a software bit to do that.

-- 
:-<> Siri Seal of Disavowal #000-001. Disavowed. Denied. Deleted.
'I desire mercy, not sacrifice.'

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#56591

On 2014.02.16, 02:28 , Michael Vilain wrote:
> In article
> <chine.bleu-1E20C5.19082615022014@news.eternal-september.org>,
>   Siri Cruz <chine.bleu@yahoo.com> wrote:
>
>> Is there a simple way in a program to see if a file system uses case
>> sensitive
>> names (like traditional Unix) or case irrelevant (like plain old HFS+)?
>
> I've recently discovered this thing on the web. It's called Google

Snide reply aside I'm glad when these questions come along and there is 
a spectrum of replies on how to find the answers.  Sometimes I learn 
something.  And interesting that it's split between "probers" (find the 
info from the system) and "testers" (contrive a test that shows 
behaviour and thus settings).

Indeed my first reaction was to open Disk Utility which shows (under the 
'info' button) "Mac OS Extended (Journaled, Encrypted)" and I'm not sure 
at all that is indicative of case insensitivity (I'll refer to Lewis in 
his reply).

As to brevity I guess Lewis' method seems best.

-- 
   Those who have reduced our privacy, whether they are state
   or commercial actors, prefer that we do not reduce theirs.
                  - Jaron Lanier, Scientific American, 2013.11.

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#57405

On 2014-02-16, Michael Vilain <vilain@NOspamcop.net> wrote:
> In article 
><chine.bleu-1E20C5.19082615022014@news.eternal-september.org>,
>  Siri Cruz <chine.bleu@yahoo.com> wrote:
>
>> Is there a simple way in a program to see if a file system uses case 
>> sensitive 
>> names (like traditional Unix) or case irrelevant (like plain old HFS+)?
>
> I've recently discovered this thing on the web. It's called Google and 
> it's replaced my CRC Handbook, my Sun Tech manuals, and my old DEC 
> manuals.  I asked this question at the Google prompt and this came back.

You and Siri Cruz are not so different, you know, haha:

Siri Cruz:
  User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X)

Michael Vilain:
  User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X)

Someone who uses an actual newsreader and connects to an actual NNTP server
probably doesn't benefit from "learn how to use a search engine" type advice.

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#57416

In article <20140302101428.693@kylheku.com>,
 Kaz Kylheku <kaz@kylheku.com> wrote:

> On 2014-02-16, Michael Vilain <vilain@NOspamcop.net> wrote:
> > In article 
> ><chine.bleu-1E20C5.19082615022014@news.eternal-september.org>,
> >  Siri Cruz <chine.bleu@yahoo.com> wrote:
> >
> >> Is there a simple way in a program to see if a file system uses case 
> >> sensitive 
> >> names (like traditional Unix) or case irrelevant (like plain old HFS+)?
> >
> > I've recently discovered this thing on the web. It's called Google and 
> > it's replaced my CRC Handbook, my Sun Tech manuals, and my old DEC 
> > manuals.  I asked this question at the Google prompt and this came back.
> 
> You and Siri Cruz are not so different, you know, haha:
> 
> Siri Cruz:
>   User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X)
> 
> Michael Vilain:
>   User-Agent: MT-NewsWatcher/3.5.3b3 (Intel Mac OS X)
> 
> Someone who uses an actual newsreader and connects to an actual NNTP server
> probably doesn't benefit from "learn how to use a search engine" type advice.

au contraire.  Google has replaced most of my bookshelf of O'Reilly 
books.  While I'm sure it wouldn't have replaced the gray wall of DEC 
manuals, it does answer all the "how do I" questions I've asked it about 
Linux.  And now that I've asked it MacOS questions, it's come up with 
some answers. But it misses more times than on Linux.

-- 
DeeDee, don't press that button!  DeeDee!  NO!  Dee...
[I filter all Goggle Groups posts, so any reply may be automatically ignored]

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#57464

On 14-03-02 15:37, Michael Vilain wrote:

> au contraire.  Google has replaced most of my bookshelf of O'Reilly 
> books.  While I'm sure it wouldn't have replaced the gray wall of DEC 
> manuals

The Grey Wall was replaced at 5.5-2 in early 1990s. First to CDs and
currently available somewhere on the HP web site where it is preserved
(hopefully) for the no-longer-developped VMS OS.

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