批量测试域名对应IP

务必使用这样的方式运行 ./look.sh >tt

cat look.sh
#!/bin/bash

nslookup<<EOF
server 172.16.5.53
spi-uat.chinare.com.cn
actuary.chinarelife.cn
actuary-uat.chinarelife.cn
admin.chinarelife.cn
autodiscover.chinarelife.cn
EOF
echo "=================================================="
cat tt |grep -v 172.16.5.53 >1
cat 1 |grep Name |awk '{print $2}' >a
cat 1 |grep Address |awk '{print $2}' >b
paste a b >all
cat 1 |grep NXDOMAIN >> all