Buffering. You haven't flushed your output buffer yet. If you add 
my $old = select FOO;
$| = 1;
select $old;

[download]
right after the open FOO, you'd see all the data.

-- Randal L. Schwartz, Perl hacker

In reply to Re: Unexpected behavior with open by merlyn
in thread Unexpected behavior with open by BlueLines

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