From: dkmd_nielsen <donn@...>
Date: 2008-11-13T06:17:21+09:00
Subject: Re: Need tutoring on using a path environment variable

On Nov 12, 3:06 pm, Siep Korteling <s.kortel...@gmail.com> wrote:
> dkmd_nielsen wrote:
> > I don't know what to do.  I have an environment variable, PW_PATH,
> > that contains the folder names where applications can be executed
> > from.  I want to start a particular application that is in one of
> > those folders.  I currently use the following:
>
> >       system("presort /a /nos /watch #{template[0]}")  # submit the
> > presort to run
>
> > This works when the contents of PW_PATH are added to the PATH
> > variable.  But I would like to avoid that if I can.  I guess my
> > questions are:  How do I first acquire the contents of PW_PATH?  How
> > do employ the contents as a temporary addition to PATH so that system
> > can submit the application and it will be found and executed?
>
> > Suggestions?  Comments?  Observations?  All are appreciated.
>
> > dvn
>
> ENV contains all environment variables; ENV['PW_PATH'] is the content of
> PW_PATH. So this might be sufficient:
>
> system("#{ENV['PW_PATH']/presort /a /nos /watch #{template[0]}")
>
> hth,
>
> Siep
>
> --
> Posted viahttp://www.ruby-forum.com/.

Thanks, Siep.  I will give this a shot.  Not sure if linux and windows/
dos will treat it the same, but I guess that's my job to figure out.