使用ifconfig命令获取IP地址：
$ ifconfig
示例输出：
eth0: flags=4163
inet 192.168.1.10 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::a00:27ff:fe5c:ebac prefixlen 64 scopeid 0x20
ether 08:00:27:5c:eb:ac txqueuelen 1000 (Ethernet)
RX packets 26284 bytes 2144348 (2.1 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 24776 bytes 1939930 (1.9 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10
loop txqueuelen 1000 (Local Loopback)
RX packets 1558 bytes 115900 (115.9 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1558 bytes 115900 (115.9 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
在上述示例中，eth0接口的IP地址是192.168.1.10。
