local $fh erases the content of $fh. And even if it didn't, open doesn't takea variable name for its first argument (just a variable).

You can simply use 

open(my $fh, '<', 'test.out')

[download]

Open returns a new anonymous file handle in $fh every time.

In reply to Re: Generate unique file handles by ikegami
in thread Generate unique file handles by alih110

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