From: Park Heesob <phasis@...>
Date: 2002-09-05T00:04:37+09:00
Subject: Re: How to capture stderr while using backtick?

Hi,

"Shashank Date" <shanko_date@yahoo.com> wrote in message
news:20020903214306.16461.qmail@web12306.mail.yahoo.com...
> Ruby Gurus,
>
> I am using backticks in my ruby script to run DOS
> commands, but cannot figure out how to separate the
> stdin from stderr.
>
> Please see transcript below for what I am trying to
> do:
>
> -------------- begin transcript -------------
>  C:\>dir z
>  Volume in drive C is LOCAL
>  Volume Serial Number is AC53-D8CC
>
>  Directory of C:\
>
>  File Not Found
>
>  C:\>ruby -ve 'puts `dir z`'
>  ruby 1.7.2 (2002-06-03) [i386-mswin32]
>  File Not Found
>  Volume in drive C is LOCAL
>  Volume Serial Number is AC53-D8CC
>
>  Directory of C:\
> ----------- end transcript -----------------
>
> Notice how, when I use Ruby, the stderr message "File
> Not Found"  shows up first and then stdin msgs.
>
> How do I separate the two streams?
>
> TIA,
> -- Shanko

Refer to http://www.rubytalk.com/blade/44186

Park Heesob