linux - 如何在 Mac shell 脚本中从 inet ip 中查找/grep 以太网接口(interface) (en)

Question

我想 grep 或需要以太网接口(interface)“en”正在获取 inet ip 的结果。在下面的 ifconfig 中，终端结果 en6 正在获取 inet 192.188.10.111，所以结果应该是 en6。

示例:如果 en2 或 en5 或任何 en XxX 正在获取 inet IP id，则应显示以太网接口(interface) enno。

它不应该显示 lo0 loopback inet 127.0.0.1

MY_MAC:~ SKULL$ ifconfig

    lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        options=3<RXCSUM,TXCSUM>
        inet6 ::1 prefixlen 128 
        inet 127.0.0.1 netmask 0xff000000 
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 
        nd6 options=1<PERFORMNUD>
    gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
    stf0: flags=0<> mtu 1280
    en0: flags=8823<UP,BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
        ether 83:c1:9y:z0:g9:99 
        nd6 options=1<PERFORMNUD>
        media: autoselect (<unknown type>)
        status: inactive
    en1: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
        options=60<TSO4,TSO6>
        ether 99:85:40:69:05:z0 
        media: autoselect <full-duplex>
        status: inactive
    en2: flags=8963<UP,BROADCAST,SMART,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
        options=60<TSO4,TSO6>
        ether 99:84:43:67:43:b6 
        media: autoselect <full-duplex>
        status: inactive
    p2p0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 2304
        ether 09:k5:6m:s6:q1:78 
        media: autoselect
        status: inactive
    awdl0: flags=8902<BROADCAST,PROMISC,SIMPLEX,MULTICAST> mtu 1452
        ether w1:6t:c3:w2:n4:78 
        nd6 options=1<PERFORMNUD>
        media: autoselect
        status: inactive
    bridge0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=63<RXCSUM,TXCSUM,TSO4,TSO6>
        ether 23:j5:12:43:43:67 
        Configuration:
            id 0:0:0:0:0:0 priority 0 hellotime 0 fwddelay 0
            maxage 0 holdcnt 0 proto stp maxaddr 100 timeout 1200
            root id 0:0:0:0:0:0 priority 0 ifcost 0 port 0
            ipfilter disabled flags 0x2
        member: en1 flags=3<LEARNING,DISCOVER>
                ifmaxaddr 0 port 5 priority 0 path cost 0
        member: en2 flags=3<LEARNING,DISCOVER>
                ifmaxaddr 0 port 6 priority 0 path cost 0
        nd6 options=1<PERFORMNUD>
        media: <unknown type>
        status: inactive
    en6: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500

        inet6 fe80::2e0:4cff:fe36:550%en6 prefixlen 64 scopeid 0xb 
        inet 192.188.10.111 netmask 0xffffff00 broadcast 192.168.255.255
        nd6 options=1<PERFORMNUD>
        media: autoselect (100baseTX <full-duplex>)
        status: active

Answer 1

这是否满足您的需求？

#!/bin/bash

for interface in `ifconfig | grep -v "\t" | awk -F':' '{print $1}'`; do
    if [ `ipconfig getifaddr $interface` ] ; then
        echo $interface
    fi
done