There may not even be a filename for the IO::File object. For example:

my $handle = IO::File->open("/tmp/my$$", "w+");
unlink "/tmp/my$$";
[download]

This handle functions completely nicely (at least in Unix), but has no "name". When the last reference to this handle is closed, the disk space in /tmp is reclaimed.

-- Randal L. Schwartz, Perl hacker
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