can not find valid cygwin path

[lin q]

>From: "Dave Korn" <dave.korn@artimi.com>
>To: <cygwin@cygwin.com>
>Subject: RE: can not find valid cygwin path
>Date: Tue, 1 Nov 2005 17:16:28 -0000
>
>lin q wrote:
> > Hi,
> >    I have the latest cygwin installed on WinXP SP1. It works fine in
> > general until I try to run some program today.
> >
> >   It is really weired, the program requiring setting up some environment
> > viriables, I guess iniside its code it tries to find some data based on
> > that variable setting. Anyway, I do it something like this in my script,
> >
> > export PROG_ENV=/cygdrive/c/prog
> > export PATH=$PROG_ENV/bin/nt:$PATH
> >
> > echo $PATH
> > $PROG_ENV/bin/nt/prog.exe
> >
>
>   Woops.  That's wrong already.  $PROG_ENV should have been expanded in
>"export PATH=" command, so "echo $PATH" should not show "$PROG_ENV/.." but
>"/cygdrive/c/prog/bin/nt....", as below:
>
>--------------------------------<snip!>--------------------------------
>dk@espanola ~> echo $PATH
>/artimi/swtools/windows/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/win/c
>/W
>INDOWS/system32:/win/c/WINDOWS:/win/c/WINDOWS/System32/Wbem:/artimi/chips/ness
>/b
>in:/win/c/Modeltech_6.0d/win32:/win/c/Modeltech_6.0d/win32pe:/win/c/WINDOWS/sy
>st
>em32:/win/c/WINDOWS:/win/c/WINDOWS/System32/Wbem:/usr/bin
>dk@espanola ~> cat foo.sh
>#!/bin/bash
>export PROG_ENV=/cygdrive/c/prog
>export PATH=$PROG_ENV/bin/nt:$PATH
>echo $PATH
>
>dk@espanola ~> . foo.sh
>/cygdrive/c/prog/bin/nt:/artimi/swtools/windows/bin:/usr/local/bin:/usr/bin:/b
>in
>:/usr/X11R6/bin:/win/c/WINDOWS/system32:/win/c/WINDOWS:/win/c/WINDOWS/System32
>/W
>bem:/artimi/chips/ness/bin:/win/c/Modeltech_6.0d/win32:/win/c/Modeltech_6.0d/w
>in
>32pe:/win/c/WINDOWS/system32:/win/c/WINDOWS:/win/c/WINDOWS/System32/Wbem:/usr/
>bi
>n
>dk@espanola ~>
>--------------------------------<snip!>--------------------------------
>
>   What shell are you using?
>
>     cheers,
>       DaveK
>--

I do not quite get what you are saying and your example, I am using BASH 
which the default cygwin shell.

In your example you can see that "/cygdrive/c/prog/bin/nt" is the first 
element in $PATH, that is what we want; "$PROG_ENV/bin/nt/prog.exe" is 
expanded to "/cygdrive/c/prog/bin/nt/prog.exe" correctly.

These are all as expected, the problem is why the correct path can not be 
taken.

Do I miss anything?

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