需要从resolv.conf中读取名称服务器

Question

我想从shell中的resolv.conf中读取名称服务器，并将它们存储到数组中。但我使用的shell版本不支持数组。我收到错误代码如下：

cat /etc/resolv.conf 
i=1; 
grep 'nameserver' /etc/resolv.conf | awk '{print $2}' | \ 
       while read line; do name_server[$i]=$line; i=$((i+1)); done 

for i in "${name_server[@]}" 
do 
    echo $i 
done 

我得到以下错误：

nameserver x.y.z.w 
nameserver x.y.z.t 

line 4:name_server[1]=x.y.z.w: not found 
line 4:name_server[2]=x.y.z.t: not found 
line 6:syntax error: bad substitution 

Answer 1

你可以试试下面

declare -a array=(`cat /etc/resolv.conf |grep nameserver|awk -F" " '{print $2}'`) 
echo ${array[0]} 
echo ${array[1]} 

Answer 2

这里的蟒蛇解决方案

#!/usr/bin/python 

with open("/etc/resolv.conf","r") as readFile: 
    print [line.split(" ")[1].strip() for line in readFile.readlines() if line.startswith("nameserver")]