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#!/bin/sh
# DNs Drill
# Usage: dnd, dnd -c, dnd 192.168.0.1, dnd 8.8.8.8
cache=false
while getopts c opt; do
case $opt in
c)cache=true;;
\?)exit 1;;
esac
done
shift $((OPTIND-1))
if [ "$1" ]; then
echo "$1"
else
echo "default"
fi
for domain in www.google.com www.baidu.com github.com gitlab.com codeberg.org www.douyu.com flylightning.xyz mirrors.flylightning.xyz git.flylightning.xyz one.sjsu.edu discord.com www.youtube.com mail.google.com mail.yahoo.com en.wikipedia.org zh.wikipedia.org archlinux.org gitlab.archlinux.org aur.archlinux.org wiki.archlinux.org wiki.gentoo.org unix.stackexchange.com stackoverflow.com superuser.com www.reddit.com kyun.host panel.ihostart.com; do
if [ "$1" ]; then
drill -- "$domain" "@$1" | awk -F: -v domain="$domain" '/^;; Query time: /{printf("%s%s\n",domain,$2)}'
else
# awk substr and length:
# https://stackoverflow.com/a/14840991
# https://unix.stackexchange.com/a/305192
resolvectl --cache="$cache" query "$domain" | awk -v domain="$domain" '/Information acquired via protocol DNS in/{printf("%s %s\n",domain,substr($NF,0,length($NF)-1))}'
fi
done
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