linux获取本机ip命令

ifconfig

eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.100  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 fe80::20c:29ff:fe8a:1234  prefixlen 64  scopeid 0x20<link>
        ether 08:0c:29:8a:12:34  txqueuelen 1000  (Ethernet)
        RX packets 123456  bytes 78901234 (75.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 654321  bytes 43210987 (41.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ip addr show

ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default 
    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 08:0c:29:8a:12:34 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.100/24 brd 192.168.1.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::20c:29ff:fe8a:1234/64 scope link 
       valid_lft forever preferred_lft forever

hostname -I

192.168.1.100