See https://github.com/pexcn/MyNote/tree/master/Notes/OpenWrt.
# Full
# 注意这个 ad_server.txt 行尾是 DOS, 这里使用 sed 替换为 Unix
wget -4 --no-check-certificate -O - https://hosts-file.net/ad_servers.txt | sed $'s/\r$//' | grep -E '^127.0.0.1' | awk '{printf "address=/%s/127.0.0.1\n",$2}' | sort > /tmp/adaway_max.conf
# Lite
wget -4 --no-check-certificate -O - https://adaway.org/hosts.txt | grep -E '^127.0.0.1' | awk '{printf "address=/%s/127.0.0.1\n",$2}' | sort > /tmp/adaway_mini.conf