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my $re_dn = qr{^(\w+) (\d+) (\d{2}:\d{2}:\d{2}) .*: eth(\d): link down +}; my $re_dn = qr{^(\w+) (\d+) (\d{2}:\d{2}:\d{2}) .*: eth(\d): link up, +(\d+)Mbps, ([^,]+), lpa (\w+)}; ... next; } }