When you fork each program (parent and child) has its own copy of the STDOUT and STDERR handles. You capture the output in the usual way:

my @cmds = qw ( cmd1 cmd2 );
my $pid = fork();
defined $pid or die "fork $!\n";
if ( $pid ) {
    $parent_captures = `$cmds[0] 2>&1`;
}
else {
    $kid_captures = `$cmds[1] 2>&1`;
}
[download]

You can probably open STDERR onto STDOUT before the fork and then just capture STDOUT as well but I don't do it that way.

cheers

tachyon

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