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From:	RISINGP1 AT nationwide DOT com
Date:	Thu, 10 Feb 2011 16:16:01 -0500
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cygwin-owner wrote on 02/10/2011 03:35:53 PM:

> 
> On Thu, Feb 10, 2011 at 03:23:38PM -0500, RISINGP1 wrote:
> >Eric wrote on 02/10/2011 12:15:33 PM:
> >
> >> On 02/10/2011 10:13 AM, Buchbinder, Barry (NIH/NIAID) [E] wrote:
> >> > Might the ability to identify cygwin's root be a good
> >> > thing to add to cygpath?
> >> 
> >> And what's so hard about 'cygpath -w /'?
> >> 
> >> > Under "System information", one could have an option
> >> > 
> >> >   -R, --root    output cygwin root directory
> >> > 
> >> > where
> >> > 
> >> > $ cygpath -Rw
> >> > C:\cygwin
> >> 
> >> Trading / for -R doesn't justify the bloat and burning another short
> >> option character, in my opinion.
> >
> >If you need it ofetn enough, here is a simple script for displaying the 

> >cygwin root:
> >
> >case $1 in
> >    -w)
> >        mount | grep " / " | cut -d" " -f1 | sed 's:/:\\:g'
> >        ;;
> >    -u)
> >        DRIVE=$(mount | grep " / " | cut -d":" -f1):
> >        echo $(mount | grep "^$DRIVE " | \
> >        cut -d" " -f3)$(mount | grep " / " | cut -d" " -f1) | \
> >        sed 's/'$DRIVE'//'
> >        ;;
> >    *)
> >        echo "Please specify -w (Windows) or -u (Unix)"
> >        ;;
> >esac
> 
> Why would we need a simple script to display the cygwin root when
> "cygpath -w /" works fine?
> 
> cgf
> 

OK.  You are right (somehow I missed the "cygpath -w /" mention in the 
thread - oops).

Change

        -w)
               mount | grep " / " | cut -d" " -f1 | sed 's:/:\\:g'
               ;;

to

        -w)
               cygpath -w /
               ;;

But "cygpath -u /" will give "/" as an answer.  The script will give (for 
me) "/cygdrive/c/cygwin".

I was merely trying to offer an alternative to Barry's request for the 
"-R" option on cygpath.  Specifically, it answers this part of his 
request:

> $ cygpath -Ru
> /cygdrive/c/cygwin
> 
> or, if the cygdrive prefix has been changed to a simple /,
> 
> $ cygpath -Ru
> /c/cygwin

- Phil

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