This seems like such a dumb idea, but maybe it'll work... 
$|=1;

attach_stderr_filter();
while (<>) { 
    print        "To STDOUT: $_"; 
    print STDERR "To STDERR: $_"; 
}

sub attach_stderr_filter {
    my($pid);
    # This is the top secret part :)
    $pid = open(STDERR, '|-');
    defined $pid or die "Cannot fork: $!\n";
    if($pid) {
        return;
    }

    # child, now prints to STDERR.
    while (<STDIN>) { s/foo/bar/; print STDERR "$_"; }
}

[download]
Woot, what do you know, it DOES work. Cool!
--
Mike

In reply to Re: Filtering my own stderr by RMGir
in thread Filtering my own stderr by ruscoekm

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