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Re: redirection after braced block

From: clemens fischer
Subject: Re: redirection after braced block
Date: Mon, 05 Oct 2009 19:55:33 +0200
User-agent: tin/1.9.4-20090211 ("Rieclachan") (UNIX) (Linux/ (i686))

Andreas Schwab wrote:

> clemens fischer writes:
>> 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.
> The trace goes to stderr, but you've just redirected it.

yeah ok, but the commands really are not executed.  I have an option
dry-run in the script, which sets "prog_log=true".  Then there are
a bunch of verbose commands in the block, none of get touched.

The fact that I can see the trace on the terminal instead of the logfile
should prove that it shows what bash is actually doing.

In the meantime I upgraded to "version 4.0.33(1)-release
(i686-pc-linux-gnu)", which didn't change anything.

Nonetheless you seem to implicitly confirm what I had originally
planned:  the block should execute and both its stdout and stderr should
get piped into the logger.


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