Can linux get local ip address?
linux能获取本地ip地址。方法:1、利用“ifconfig -a”命令,该命令用于显示或者设置网络设备信息;2、利用“ip address”命令,语法为“ip address | grep eth0 | awk '{print$2}'”;3、利用“hostname -I”命令,该命令可以获取具体的网卡信息。
本教程操作环境:linux7.3系统、Dell G3电脑。
linux能获取本地ip地址吗
在介绍前先学习一下三个命令行筛选的主要的指令,也是频繁使用到的命令。
1、head。head 命令可用于查看文件的开头部分的内容,有一个常用的参数 -n 用于显示行数,默认为 10。
运行head --help查看说明信息:
-q 隐藏文件名
-v 显示文件名
-c 显示的字节数。
-n 显示的行数。
2、grep。 grep 命令用于查找文件里符合条件的字符串。运行grep --help查看说明信息,参数太多主要有以下几种:
grep -r递归选择。
grep -v反选,显示不包含匹配文本的所有行。
grep -n显示符合样式的那一行之前。
grep -A显示符合范本样式的那一列之外,并显示该行之后的内容。
3、awk。强大的文本分析工具,命令使用过于复杂(awk --help),只需要知道 awk '{print$2}'为打印第二行数据。
4、tail。tail命令可用于查看文件的结束部分的内容,有一个常用的参数 -n 用于显示行数,默认为 10。tail --help查看主要的参数:
tail -n显示最后多少行
tail -c显示最后十个字符
tail -f 循环读取,跟踪显示最后十行
5、cut。显示每行从开头算起的文字。
cut -b :以字节为单位进行分割。
cut -c :以字符为单位进行分割
cut -d :自定义分隔符,默认为制表符
cut -f :与-d一起使用,指定显示哪个区域
获取Linux IP地址的几种方法:
一、ifconfig命令
无线网卡地址:
echo wlan0=`ifconfig wlan0 | head -n2 | grep inet | awk '{print$2}'`
有线网卡地址:
echo eth0=`ifconfig eth0 | head -n2 | grep inet | awk '{print$2}'`
或者命令:
ifconfig | grep "inet " | cut -d: -f2 | awk '{print $1}' | grep -v "^127."
二.ip address命令
无线网卡地址:
ip address | grep wlan0 | awk '{print$2}'
有线网卡地址:
ip address | grep eth0 | awk '{print$2}'
或者
echo eth0=`ip address show eth0 | head -n4 | grep inet | awk '{print$2}' echo wlan0=`ip address show wlan0 | head -n4 | grep inet | awk '{print$2}'
三、 hostname -I 命令
运行hostname -help命令查看说明信息:
hostname -i得到环回地址127.0.1.1, hostname -I得到具体的网卡信息192.168.31.82 。
推荐学习:Linux视频教程
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