Sure, but then the STDOUT of child.pl gets lost. Try adding a line in child.pl: 
#!perl

for (1..5) {
    print STDERR "Message $_\n";
    print STDOUT "STDOUT $_\n";
}

[download]
You'll see that what's printed to STDOUT doesn't get displayed, because it ends up in parent.pl's RDRFH. I want the STDOUT of child.pl to correspond to parent.pl's STDOUT, not to be a pipe.

In reply to Re^2: Reading only STDERR by nomis80
in thread Reading only STDERR by nomis80

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