This is magic employed by IO::All.

If you want to know the details, IO::All overrides some operators of Perl to make the normal Perl syntax do something different when dealing with IO::All objects.

The expression is simply $a < $b, the comparison expression. Except that the IO::All objects do something different when "compared" with something, to make this syntax appear like shell redirection.

In reply to Re^3: direct data to a socket by Corion
in thread direct data to a socket by demoralizer

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