Linux系统查看hosts配置与dns域名配置

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方法1： for i in `cat /etc/hosts | grep -v ^$ | grep -v "127.0.0.1" | grep -v "::1" | grep -v "#"`;do echo "$i";done && echo "" &&  cat /etc/resolv.conf  | grep -v ^$  | grep -v "#"   方法2： （1）cat /etc/hosts | grep -v ^$ | grep -v "127.0.0.1" | grep -v "::1" | grep -v "#" | xargs   （2）cat /etc/resolv.conf  | grep -v ^$  | grep -v "#" | xargs