ifconfig
全称：interfaces config,主要用于设置或显示网络设备信息的。
打印：
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| lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
options=1203<RXCSUM,TXCSUM,TXSTATUS,SW_TIMESTAMP>
inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
nd6 options=201<PERFORMNUD,DAD>
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=50b<RXCSUM,TXCSUM,VLAN_HWTAGGING,AV,CHANNEL_IO>
ether b0:e5:f9:f3:a8:de //mac地址
inet6 fe80::1c2c:2b1d:6af8:3558%en0 prefixlen 64 secured scopeid 0x6 //ipv6地址
inet 10.1.63.198 netmask 0xffffff00 broadcast 10.1.63.255 //ipv4地址、子网掩码、广播地址
nd6 options=201<PERFORMNUD,DAD>
media: autoselect (1000baseT <full-duplex>)
status: active
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ifconfig打印的是所有网络设备的信息，并且名称是专有名词比如en0，一般来说如果电脑只连了WIFI那么en0代表的就是WIFI网卡信息，如果还插了网线那么en0代表的就是以太网网卡信息，en1代表的才是WIFI网卡信息。可以配合networksetup -listallhardwareports 查看。
networksetup -listallhardwareports
打印：
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| Hardware Port: Ethernet
Device: en0
Ethernet Address: b0:e5:f9:f3:a8:de
Hardware Port: USB 10/100/1000 LAN
Device: en4
Ethernet Address: 00:e0:4c:89:fe:55
Hardware Port: Ethernet Adapter (en5)
Device: en5
Ethernet Address: 16:6a:42:01:62:87
Hardware Port: Ethernet Adapter (en6)
Device: en6
Ethernet Address: 16:6a:42:01:62:88
Hardware Port: Wi-Fi
Device: en1
Ethernet Address: b0:e5:f9:f2:56:75
...
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networksetup -listallnetworkservices
打印：
参考
ifconfig man手册
Linux ifconfig命令
