Sounds like you need a tee for stderr.  I guess you could use it on stdout for your log but if it makes such a large file, you probably don't want that.  Maybe do a google search on"linux tee for stdout"?

On Sat, Jul 11, 2009 at 5:05 AM, kitepilot@kitepilot.com <kitepilot@kitepilot.com> wrote:
Good morning...

What I have:
I wrote a script that generates a LOOOOOOOONG log file...
I send stdout and stderr to the same file so I can see errors into context.

Problem is:
I have to find that THERE WAS an error first...
There are no obvious cues to separate the GOOD messages from the BAD
messages and scanning a long text file visually is a (sometimes useless)
challenge.

What I want:
stdout to one file.
stderr simultaneously out to 2 files.
I want to keep my log as it is (again, errors into context), but I also want
to output a parallel log with ERRORS only.
In other words:
One log captures only errors, so I know that something failed and,
another log captures EVERYTHING so I know WHERE it failed.

I know this is possible, but I am already dizzy trying to make sense of the
redirection reading.
Thanks!
ET
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--
Dazed_75 a.k.a. Larry

The spirit of resistance to government is so valuable on certain occasions, that I wish it always to be kept alive.
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