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use File::RingBuffer; my $obj = new File::RingBuffer { directory => "/tmp/b" }; &uja($obj); my $obj = new File::RingBuffer { directory => "/tmp/b", file_name => "_smtplog.", }; &uja($obj); sub uja { my ($obj) = @_; my $fh = $obj->open; $_ = `date`; print $fh $_; close($fh); $obj->close; }