How to uniformly point to the root of a drive?

[Thorsten Kampe]

* Christopher Faylor (Sun, 20 May 2007 13:27:05 -0400)
> On Sun, May 20, 2007 at 06:20:51PM +0100, Thorsten Kampe wrote:
> >* Dave Korn (Sun, 20 May 2007 17:16:43 +0100)
> >> On 20 May 2007 17:11, Brian Dessent wrote:
> >> > Dave Korn wrote:
> >> > 
> >> >>   This relies on the mountpoints being set correctly, which might not work
> >> >> if your drive letter changes ...
> >> > 
> >> > Well if that is the case and / points to the wrong dir then I don't see
> >> > how you can be using Cygwin at all,
> >> 
> >>   I'm not sure exactly what Thorsten is looking for in his original question,
> >
> >Something like "cat /cygdrive/g/autorun.inf" from a shell script. 
> >
> >> so I don't know if it's relevant here or not, but it might be useful for a
> >> portable installation to have a way to detect the drive letter so as to be
> >> able to (re)assign the mountpoints (e.g. from Cygwin.bat) before starting up a
> >> shell or other cygwin app.
> >
> >I already do that (something like "mount -fu %~d0\cygwin /") in a 
> >batch script. Unfortunately the %~d0" trick is a Cmd thing so I can't 
> >directly use it from bash or zsh.
> 
> So it sounds like Brian's method would work then wouldn't it?

I suppose so. Something like [1] is even simpler and avoids running an 
external three times (which is quite expensive when runnning from a 
flash drive).

Probably [1] could be even more concise. The "$usb[1]" to refer to the 
first character is zsh syntax.

Thorsten

[1] usb=$(cygpath -m /); usb=$usb[1]


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