inguanzo,
There are several ways to do this. You may want to consider one of the easiest and have a look at IO::Tee.

Cheers - L~R

This assumes you want to allow the program to run/output normally but also have a copy of the STDOUT/STDERR output

In reply to Re: STDOUT, STDERR sniffer by Limbic~Region
in thread STDOUT, STDERR sniffer by inguanzo

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