Unwanted case-insensivity in file name globbing

Unwanted case-insensivity in file name globbing

[Paul]

I just replicated my Cygwin setup on Win 7 (64 bits) onto another Win 7 64-
bit machine, including /etc/fstab

   c: /c ntfs binary,posix=0,user,auto
   d: /d ntfs binary,posix=0,user,auto
   e: /e ntfs binary,posix=0,user,auto
   f: /f ntfs binary,posix=0,user,auto
   g: /g ntfs binary,posix=0,user,auto
   i: /i ntfs binary,posix=0,user,auto
   o: /o ntfs binary,posix=0,user,auto
   r: /r ntfs binary,posix=0,user,auto
   s: /s ntfs binary,posix=0,user,auto

So my home directory "~" is "C:\cygwin64\home\My.User.Name".

I noticed that when I issue a command involving a file name pattern, it is 
not case sensitive in that directory.  For example, "ls -d [A-Z]*" will 
return the folder "cat".  Web searching revealed that it could be the bash 
shell option nocaseglob, but I confirmed that in my case, it is not set:

   $ shopt -p nocaseglob

      shopt -u nocaseglob

I am also puzzled by the fact that when I cd to a subdirectory, the 
unwanted case insensivity is no longer present.  I thought that I did 
something wierd in replicating my Cygwin setup, but when I tested my 
original setup on the 1st computer, I found the same selective case 
insensitivity.

What other setting might cause this?  How can I get bonafide Unix behaviour 
in the file name globbing?


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Re: Unwanted case-insensivity in file name globbing

[Jan Bruun Andersen]

Seems overly complicated for me. My current fstab looks like this:

# /etc/fstab
#
#    This file is read once by the first process in a Cygwin process tree.
#    To pick up changes, restart all Cygwin processes.  For a description
#    see https://cygwin.com/cygwin-ug-net/using.html#mount-table

# Device-       Mount-          FS-type         Options                 Ignored
# name          point
# ------------- --------------- ---------------
----------------------- --------------------

C:/Users        /home           ntfs            binary,posix=1,user     0 0
none            /               cygdrive        binary,posix=0,user     0 0

If I remember correctly the cygdrive thing is what automatically maps
all my C:. D:, E:, etc drives to /C, /D, E and so on.

The magic with posix is described here:
https://cygwin.com/cygwin-ug-net/using.html#mount-table

  posix=0   - Switch off case sensitivity for paths under this mount point
     (default for the cygdrive prefix).

  posix=1   - Switch on case sensitivity for paths under this mount point
     (default for all other mount points).

Regards,

On 10 November 2015 at 04:15, Paul <Paul.Domaskis@gmail.com> wrote:
> I just replicated my Cygwin setup on Win 7 (64 bits) onto another Win 7 64-
> bit machine, including /etc/fstab
>
>    c: /c ntfs binary,posix=0,user,auto
>    d: /d ntfs binary,posix=0,user,auto
>    e: /e ntfs binary,posix=0,user,auto
>    f: /f ntfs binary,posix=0,user,auto
>    g: /g ntfs binary,posix=0,user,auto
>    i: /i ntfs binary,posix=0,user,auto
>    o: /o ntfs binary,posix=0,user,auto
>    r: /r ntfs binary,posix=0,user,auto
>    s: /s ntfs binary,posix=0,user,auto
>
> So my home directory "~" is "C:\cygwin64\home\My.User.Name".
>
> I noticed that when I issue a command involving a file name pattern, it is
> not case sensitive in that directory.  For example, "ls -d [A-Z]*" will
> return the folder "cat".  Web searching revealed that it could be the bash
> shell option nocaseglob, but I confirmed that in my case, it is not set:
>
>    $ shopt -p nocaseglob
>
>       shopt -u nocaseglob
>
> I am also puzzled by the fact that when I cd to a subdirectory, the
> unwanted case insensivity is no longer present.  I thought that I did
> something wierd in replicating my Cygwin setup, but when I tested my
> original setup on the 1st computer, I found the same selective case
> insensitivity.
>
> What other setting might cause this?  How can I get bonafide Unix behaviour
> in the file name globbing?
>
>
> --
> Problem reports:       http://cygwin.com/problems.html
> FAQ:                   http://cygwin.com/faq/
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>

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Re: Unwanted case-insensivity in file name globbing

[Paul]

Ken Brown <kbrown <at> cornell.edu> wrote:
> ...don't forget about the registry setting you need in order to turn
> on case sensitivity:
> 
> http://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-
casesensitive

That's OK, I just need case-insensitive file globbing.  I don't want
to mess with the actual case sensitivity in Win 7 cuz who knows
consequences (human or software) can result.  Besides, I don't have
permissions to change the registry, though I appreciate the awareness.


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Re: Unwanted case-insensivity in file name globbing

[Ken Brown]

On 11/10/2015 10:44 AM, Paul wrote:
> Jan Bruun Andersen <jan_bruun_andersen <at> jabba.dk> wrote:
> | Seems overly complicated for me. My current fstab looks like this:
> |
> | # /etc/fstab
> | #
> | #    This file is read once by the first process in a Cygwin process tree.
> | #    To pick up changes, restart all Cygwin processes.  For a description
> | #    see https://cygwin.com/cygwin-ug-net/using.html#mount-table
> |
> | # Device-       Mount-          FS-type         Options
> Ignored
> | # name          point
> | # ------------- --------------- ---------------
> | ----------------------- --------------------
> |
> | C:/Users        /home           ntfs            binary,posix=1,user     0
> 0
> | none            /               cygdrive        binary,posix=0,user     0
> 0
> |
> | If I remember correctly the cygdrive thing is what automatically maps
> | all my C:. D:, E:, etc drives to /C, /D, E and so on.
> |
> | The magic with posix is described here:
> | https://cygwin.com/cygwin-ug-net/using.html#mount-table
> |
> |   posix=0   - Switch off case sensitivity for paths under this mount point
> |      (default for the cygdrive prefix).
> |
> |   posix=1   - Switch on case sensitivity for paths under this mount point
> |      (default for all other mount points).
>
> Thanks, Jan.  I was actually looking at that page, and totally glossed
> over the posix switch.  Will try it (the machine is elsewhere).

And don't forget about the registry setting you need in order to turn on 
case sensitivity:

 
https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-casesensitive

Ken


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Re: Unwanted case-insensivity in file name globbing

[Paul]

Jan Bruun Andersen <jan_bruun_andersen <at> jabba.dk> wrote:
| Seems overly complicated for me. My current fstab looks like this:
| 
| # /etc/fstab
| #
| #    This file is read once by the first process in a Cygwin process tree.
| #    To pick up changes, restart all Cygwin processes.  For a description
| #    see https://cygwin.com/cygwin-ug-net/using.html#mount-table
| 
| # Device-       Mount-          FS-type         Options                 
Ignored
| # name          point
| # ------------- --------------- ---------------
| ----------------------- --------------------
| 
| C:/Users        /home           ntfs            binary,posix=1,user     0 
0
| none            /               cygdrive        binary,posix=0,user     0 
0
| 
| If I remember correctly the cygdrive thing is what automatically maps
| all my C:. D:, E:, etc drives to /C, /D, E and so on.
| 
| The magic with posix is described here:
| https://cygwin.com/cygwin-ug-net/using.html#mount-table
| 
|   posix=0   - Switch off case sensitivity for paths under this mount point
|      (default for the cygdrive prefix).
| 
|   posix=1   - Switch on case sensitivity for paths under this mount point
|      (default for all other mount points).

Thanks, Jan.  I was actually looking at that page, and totally glossed
over the posix switch.  Will try it (the machine is elsewhere).

I realize that cygdrive maps all the letter drives, but I'm trying to
cut down on the typed text.


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