如何从 ifconfig 输出中 grep IP 地址

Question

以下是我的 ifconfig 输出

eth0      Link encap:Ethernet  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:28 Base address:0x2000 

eth1      Link encap:Ethernet  
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:36497 errors:0 dropped:0 overruns:0 frame:14515
          TX packets:44884 errors:1352 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:20781745 (20.7 MB)  TX bytes:17776225 (17.7 MB)
          Interrupt:17 Base address:0xc000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:12 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:720 (720.0 B)  TX bytes:720 (720.0 B)

virbr0    Link encap:Ethernet  
          inet addr:192.168.122.1  Bcast:192.168.122.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:0 (0.0 B)  TX bytes:4416 (4.4 KB)

vmnet1    Link encap:Ethernet 
          inet addr:192.168.185.1  Bcast:192.168.185.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

vmnet8    Link encap:Ethernet  
          inet addr:192.168.207.1  Bcast:192.168.207.255  Mask:255.255.255.0

          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:25 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

如何使用grep提取每个网卡对应的IP地址？

那可能吗？如何实现？

Answer 1

$ ip -o addr show | awk '/inet/ {print $2, $3, $4}'
lo inet 127.0.0.1/8
lo inet6 ::1/128
eth0 inet 192.168.0.1/24
eth0 inet6 fe80::2a0:feed:dead:beef/64