[R-SIG-Mac] Case distinction on a Mac.

[Rolf Turner]

On 20/02/2009, at 1:56 PM, Kasper Daniel Hansen wrote:

> It is pretty easy, you just need to reformat your mac (and therefore
> move everything of it, as well as re-installing everything). When you
> reformat you will be asked what file system you want, so it is in
> principle dead easy.

	This must be some new use of the word ``easy'' with which
	I am not familiar! :-)

> Some mac software needs HFS though, at least as far as I understand.

	Oooohhhh boy.  This sounds too dangerous by half.  And then
	some.  More dangerous than the case-insensitivity issue.
	I guess I'll just have to lump it.

		cheers,

			Rolf Turner

>
> Kasper
>
> On Feb 19, 2009, at 16:52 , Rolf Turner wrote:
>
>>
>> On 20/02/2009, at 1:28 PM, Steve Revilak wrote:
>>
>>>> From: Rolf Turner <r.turner at auckland.ac.nz>
>>>> Date: Fri, 20 Feb 2009 12:47:46 +1300
>>>> Subject: [R-SIG-Mac] Case distinction on a Mac.
>>>
>>>> I have noticed that OS X sometimes fails to make a case
>>>> distinction in
>>>> the names of files.  E.g. if I have a file ``junk'' and I try to
>>>> create
>>>> a directory using ``mkdir Junk'' it will refuse to do so saying
>>>> ``file
>>>> exists''.
>>>>
>>>> Likewise I have just noticed that in R
>>>>
>>>> 	file.exists(".Rdata")
>>>>
>>>> returns TRUE when no file .Rdata exists (but there *is* a
>>>> file .RData).
>>>>
>>>> This strikes me as an undesirable, uh, feature.  Is there any way
>>>> that
>>>> I can tell OS X to smarten up about this?
>>>
>>> Out of the box, OS X filesystems are formatted as HFS+, which is  
>>> case
>>> insensitive (but case preserving).
>>>
>>> There is are variants of HFS+ that are case sensitive; Disk Utility
>>> refers to them variant as "Mac OS Extended (Case Sensitive)" and  
>>> "Mac
>>> OS Extended (Case Sensitive, journaled)".
>>>
>>> If you'd like the file system to be case sensitive, you'll need to
>>> format the drive that way.
>>
>> Oooooohhhh boy!  That sounds way beyond my (very limited)
>> capabilities.
>>
>> Thanks anyway.
>>
>> 	cheers,
>>
>> 		Rolf Turner
>>
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