Linux命令行得到系统IP

输入ifconfig得到

eth0      Link encap:Ethernet  HWaddr :::2E:9A:
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:17ff:fe1e:9a03/ Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:  Metric:
          RX packets: errors: dropped: overruns: frame:
          TX packets: errors: dropped: overruns: carrier:
          collisions: txqueuelen:
          RX bytes: (8.6 MiB)  TX bytes: (106.4 KiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::/ Scope:Host
          UP LOOPBACK RUNNING  MTU:  Metric:
          RX packets: errors: dropped: overruns: frame:
          TX packets: errors: dropped: overruns: carrier:
          collisions: txqueuelen:
          RX bytes: (8.5 KiB)  TX bytes: (8.5 KiB)

输入 ifconfig | grep "inet addr" | grep -v 127.0.0.1 | awk '{print $2}' | awk -F: '{print $2}'

得到 192.168.1.1