linux - Bash 脚本 : how to make two variables from a string?

Question

我有一个包含服务器名称和 IP 地址的列表文件。我将如何读取每一行，并将其分成两个用于完成其他命令的变量？

MyList 中的示例:

server01.mydomain.com 192.168.0.23
server02.testdomain.com 192.168.0.52

预期脚本

#!/bin/bash
MyList="/home/user/list"
while read line
do
   echo $line #I see a print out of the hole line from the file
   "how to make var1 ?" #want this to be the hostname
   "how to make var2 ?" #want this to be the IP address
   echo $var1
   echo $var2
done < $MyList

Answer 1

只需将多个参数传递给 read :

while read host ip
do
    echo $host
    echo $ip
done

如果您不想将第三个字段读入$ip，您可以为其创建一个虚拟变量:

while read host ip ignored
do
    # ...
done