1/* sort -k4,4g */ 2IFF_UP (1 << 0) 3IFF_BROADCAST (1 << 1) 4IFF_DEBUG (1 << 2) 5IFF_LOOPBACK (1 << 3) 6IFF_POINTOPOINT (1 << 4) 7IFF_NOTRAILERS (1 << 5) 8IFF_RUNNING (1 << 6) 9IFF_NOARP (1 << 7) 10IFF_PROMISC (1 << 8) 11IFF_ALLMULTI (1 << 9) 12IFF_MASTER (1 << 10) 13IFF_SLAVE (1 << 11) 14IFF_MULTICAST (1 << 12) 15IFF_PORTSEL (1 << 13) 16IFF_AUTOMEDIA (1 << 14) 17IFF_DYNAMIC (1 << 15) 18IFF_LOWER_UP (1 << 16) 19IFF_DORMANT (1 << 17) 20IFF_ECHO (1 << 18) 21