方法一：ip 命令
# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:1c:42:c9:3c:81 brd ff:ff:ff:ff:ff:ff
inet 10.10.10.129/24 brd 10.10.10.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fdb2:2c26:f4e4:0:55da:1265:541f:8007/64 scope global temporary dynamic
valid_lft 563315sec preferred_lft 44695sec
inet6 fdb2:2c26:f4e4:0:21c:42ff:fec9:3c81/64 scope global dynamic mngtmpaddr
valid_lft 2591846sec preferred_lft 604646sec
inet6 fe80::21c:42ff:fec9:3c81/64 scope link
valid_lft forever preferred_lft forever或者：
# ip a s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:1c:42:c9:3c:81 brd ff:ff:ff:ff:ff:ff
inet 10.10.10.129/24 brd 10.10.10.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fdb2:2c26:f4e4:0:55da:1265:541f:8007/64 scope global temporary dynamic
valid_lft 563315sec preferred_lft 44695sec
inet6 fdb2:2c26:f4e4:0:21c:42ff:fec9:3c81/64 scope global dynamic mngtmpaddr
valid_lft 2591846sec preferred_lft 604646sec
inet6 fe80::21c:42ff:fec9:3c81/64 scope link
valid_lft forever preferred_lft forever或者：
# ip address show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 00:1c:42:c9:3c:81 brd ff:ff:ff:ff:ff:ff
inet 10.10.10.129/24 brd 10.10.10.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fdb2:2c26:f4e4:0:55da:1265:541f:8007/64 scope global temporary dynamic
valid_lft 563315sec preferred_lft 44695sec
inet6 fdb2:2c26:f4e4:0:21c:42ff:fec9:3c81/64 scope global dynamic mngtmpaddr
valid_lft 2591846sec preferred_lft 604646sec
inet6 fe80::21c:42ff:fec9:3c81/64 scope link
valid_lft forever preferred_lft forever方法二：ifconfig 命令
# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.10.10.129 netmask 255.255.255.0 broadcast 10.10.10.255
inet6 fdb2:2c26:f4e4:0:21c:42ff:fec9:3c81 prefixlen 64 scopeid 0x0<global>
inet6 fe80::21c:42ff:fec9:3c81 prefixlen 64 scopeid 0x20<link>
inet6 fdb2:2c26:f4e4:0:55da:1265:541f:8007 prefixlen 64 scopeid 0x0<global>
ether 00:1c:42:c9:3c:81 txqueuelen 1000 (Ethernet)
RX packets 698666 bytes 485434755 (462.9 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 372557 bytes 699406543 (667.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 73792 bytes 394285172 (376.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 73792 bytes 394285172 (376.0 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0方法三：iwconfig 命令
# iwconfig
lo no wireless extensions.
eth0 no wireless extensions.