Wild card to address drives

Wild card to address drives

[Fergus Daly]

I have 
none / cygdrive binary 0 0
as the only line in the file /etc/fstab to allow for example
$ ls /h/config.sys
instead of the long-hand
$ ls /cygdrive/h/config.sys
In Linux I can type something like
ls /?/ -Ax 
as a wild card to address ALL drives, but this does not work in Cygwin.
Is there a wild card syntax that would?
Thank you.
Fergus

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Re: Wild card to address drives

[Hans-Bernhard Bröker]

Am 18.07.2019 um 10:03 schrieb Fergus Daly:
> I have 
> none / cygdrive binary 0 0
> as the only line in the file /etc/fstab to allow for example
> $ ls /h/config.sys
> instead of the long-hand
> $ ls /cygdrive/h/config.sys

And that's precisely your problem.  You've now overlaid two mount points
onto /: the cygdrive tree, and the normal Cygwin root mount.

Without this, your command would have worked just fine.

> In Linux I can type something like
> ls /?/ -Ax 
> as a wild card to address ALL drives, 

Not really, as there is no such thing as "drives" on Linux.  The above
will list all directories under / that have single letters as their name
--- whether those be mounted filesystems, or ordinary directories.

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Re: Wild card to address drives

[Andrey Repin]

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[-- Attachment #1: Type: text/plain; charset=utf-8, Size: 1412 bytes --]

Greetings, Hans-Bernhard Bröker!

> Am 18.07.2019 um 10:03 schrieb Fergus Daly:
>> I have 
>> none / cygdrive binary 0 0
>> as the only line in the file /etc/fstab to allow for example
>> $ ls /h/config.sys
>> instead of the long-hand
>> $ ls /cygdrive/h/config.sys

> And that's precisely your problem.  You've now overlaid two mount points
> onto /: the cygdrive tree, and the normal Cygwin root mount.

I understand that, but I don't understand the /proc/cygdrive behavior in such
case.
My expectation was that /proc/cygdrive/ would only hold Windows drives.

But...

$ ls -l /proc/cygdrive
lrwxrwxrwx 1 anrdaemon None 0 июл 18 20:17 /proc/cygdrive -> /

Why?

> Without this, your command would have worked just fine.

>> In Linux I can type something like
>> ls /?/ -Ax 
>> as a wild card to address ALL drives, 

> Not really, as there is no such thing as "drives" on Linux.  The above
> will list all directories under / that have single letters as their name
> --- whether those be mounted filesystems, or ordinary directories.


-- 
With best regards,
Andrey Repin
Thursday, July 18, 2019 20:15:38

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Re: Wild card to address drives

[Brian Inglis]

On 2019-07-18 02:03, Fergus Daly wrote:
> I have 
> none / cygdrive binary 0 0
> as the only line in the file /etc/fstab to allow for example
> $ ls /h/config.sys
> instead of the long-hand
> $ ls /cygdrive/h/config.sys
> In Linux I can type something like
> ls /?/ -Ax 
> as a wild card to address ALL drives, but this does not work in Cygwin.
> Is there a wild card syntax that would?

Should work - I tried that mapping for a while, but found it interfered with
asking Windows utilities for help e.g. cmd /? had to be cmd /\?:

$ ls -d /?/\$RECYCLE.BIN
'/c/$RECYCLE.BIN'  '/d/$RECYCLE.BIN'  '/g/$RECYCLE.BIN'
$ ls -d /proc/cygdrive/?/\$RECYCLE.BIN
'/proc/cygdrive/c/$RECYCLE.BIN'  '/proc/cygdrive/d/$RECYCLE.BIN'
'/proc/cygdrive/g/$RECYCLE.BIN'
$ cmd /c ver
Microsoft Windows [Version 10.0.17763.615]
$ uname -srvmo
CYGWIN_NT-10.0 3.0.7(0.338/5/3) 2019-04-30 18:08 x86_64 Cygwin

What does mtab show:

$ head /etc/mtab
C:/cygwin64/bin /usr/bin ntfs binary,auto 1 1
C:/cygwin64/lib /usr/lib ntfs binary,auto 1 1
C:/cygwin64 / ntfs binary,auto 1 1
C: /c ntfs binary,posix=0,user,noumount,auto 1 1
D: /d ntfs binary,posix=0,user,noumount,auto 1 1
G: /g ntfs binary,posix=0,user,noumount,auto 1 1

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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