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Re: redirection after braced block


From: Chet Ramey
Subject: Re: redirection after braced block
Date: Mon, 05 Oct 2009 16:29:11 -0400
User-agent: Thunderbird 2.0.0.23 (Macintosh/20090812)

clemens fischer wrote:

> I have the following construct in a script:
> 
>   ... a number of commands
>   {
>       ... a number of commands
>   } 2>&1 | ${prog_log} "${logfile}"
> 
> It seems anything inside the braces is not seen by bash, and it doesn't
> show up in a "sh -x ..." trace, but ${prog_log} does.  I had debug
> echo's at the start of the block, they aren't triggered.

I don't know anything about your program or what else might be going on,
but set -x sends its output to stderr -- if you redirect fd 2, the trace
output is going to be redirected right along with it.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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