我正在开发 CentOS。这是我第一次在基于 UNIX 的操作系统中乱搞,而且很难习惯。我对 Powershell 有更扎实的经验。无论如何,我的任务是列出所有接口及其对应的 IP 和 MAC 地址。有没有一种简单的方法可以做到这一点?我发现
ip addr
显然有我需要的所有信息,但我不知道如何从字符串中“删除”我需要的信息。我想以某种可读的格式列出它们,如下所示:
interfacename ipaddress macaddress
写一个这样的脚本:
#!/bin/bash
printf '%10s %32s %32s\n' interface ipaddress macaddress
printf '%s\n' '----------------------------------------------------------------------------'
for each in $(ip address | grep -oP '(^[\d]+:\s)\K[\d\w]+'); do
mac=$(ip address show ${each} | grep -oP '(?<=link/ether\s)\K[\da-f:]+|(?<=link/loopback\s)\K[\da-f:]+')
for address in $(ip address show ${each} | grep -oP '(?<=inet\s)\K[\d.]+|(?<=inet6\s)\K[\da-f:]+'); do
printf '%10s %32s %32s\n' ${each} ${address} ${mac}
done
done
输出:
interface ipaddress macaddress
----------------------------------------------------------------------------
lo 127.0.0.1 00:00:00:00:00:00
lo ::1 00:00:00:00:00:00
wlo1 192.168.0.7 c8:aa:bb:cc:dd:ee
wlo1 fe80::7aec:8287:9f45:d833 c8:aa:bb:cc:dd:ee
docker0 172.17.0.1 02:42:0d:0d:0d:0d
tap0 10.1.30.2 16:50:cc:cc:cc:cc
tap0 fe80::10a9:d3ff:fece:57d7 16:50:cc:cc:cc:cc