Handles created by open are also IO::Handle objects. All IO handles are, actually. You just need to load IO::Handle (use IO::Handle;) to use the methods. 

use IO::Handle;

open(my $fh, '>', $fn) or die;
print $fh 'foo!';
$fh->flush();         # From IO::Handle

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In reply to Re^3: Chapter 8 of intermediate perl by ikegami
in thread Chapter 8 of intermediate perl by actualize

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