[[email protected] ~]# ifconfig
|
eth0 Link encap:Ethernet HWaddr DA:DE:BE:41:89:18 inet addr:192.168.150.53 Bcast:192.168.150.255 Mask:255.255.255.0 inet6 addr: fe80::d8de:beff:fe41:8918/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:184255445 errors:0 dropped:0 overruns:0 frame:0 TX packets:51947 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:12701252470 (11.8 GiB) TX bytes:4422271 (4.2 MiB) Interrupt:17 |
方法1：匹配 inet addr 这行；以冒号为分隔符，显示第2段；再次以空格为分隔符，显示第1段
[[email protected] ~]# ifconfig eth0 |grep ‘inet addr‘ |cut -d: -f2 |cut -d" " -f1
| 192.168.150.53 |
方法2：匹配 inet addr 这行；以空替换从开头到 addr: 的字符串；再次以空替换从Bcast到结尾的字符串
[[email protected] ~]# ifconfig eth0 |grep ‘inet addr‘ |sed ‘s/^.*addr://g‘ |sed ‘s/Bcast.*$//g‘
| 192.168.150.53 |
方法3：匹配 inet addr 这行；以：或者空格作为分隔符，然后打印第4列
[[email protected] ~]# ifconfig eth0 |grep ‘inet addr‘ |awk -F[:" "]+ ‘{print $4}‘
| 192.168.150.53 |
方法4：匹配 inet addr 这行；以：作为分隔符，打印第2列，然后再打印第一列
[[email protected] ~]# ifconfig eth0 |grep ‘inet addr‘ |awk -F: ‘{print $2}‘ |awk ‘{print $1}‘
| 192.168.150.53 |
方法5：
[[email protected] ~]# ifconfig eth0|sed -nr ‘2s#^.*addr:(.*) Bcast.*$#\1#g‘p
| 192.168.150.53 |
方法6：
[[email protected] ~]# ifconfig eth0 |awk ‘/inet addr:/ {print $2}‘ |awk -F: ‘{print $2}‘
| 192.168.150.53 |
方法7：
[[email protected] ~]# ifconfig eth0 |awk ‘/inet addr:/ {print $2}‘ |awk -F: ‘{print $2}‘
| 192.168.150.53 |
方法8：
[[email protected] ~]# ifconfig eth0 |awk ‘NR==2 {print $2}‘ |awk -F: ‘{print $2}‘
| 192.168.150.53 |
方法9：
[[email protected] ~]# ip add |awk -F ‘[ /]+‘ ‘NR==8 {print $3}‘
| 192.168.150.53 |