@roboneko @MischievousuTomatosu @dcc @paulo Here if you are interested lol

#!/bin/bash
##hostblock.sh

blockip="0.0.0.0"

umask 0077 && echo "Changed umask (0077)"
if [ -d /tmp/adblock ]; then
  rm -r /tmp/adblock && echo "Removed /tmp/adblock"
fi

mkdir /tmp/adblock && echo "created /tmp/adblock"
cd /tmp/adblock

list="final_iplist.txt"
templist="$list.tmp"
final="hosts.txt"

# Add lists using lists+=( "" )

lists=( "https://v.firebog.net/hosts/Easylist.txt" )
lists+=( "https://raw.githubusercontent.com/PolishFiltersTeam/KADhosts/master/KADhosts.txt" )
lists+=( "https://raw.githubusercontent.com/FadeMind/hosts.extras/master/add.Spam/hosts" )
lists+=( "https://v.firebog.net/hosts/static/w3kbl.txt" )
lists+=( "https://adaway.org/hosts.txt" )
lists+=( "https://v.firebog.net/hosts/AdguardDNS.txt" )
lists+=( "https://v.firebog.net/hosts/Admiral.txt" )
lists+=( "https://raw.githubusercontent.com/anudeepND/blacklist/master/adservers.txt" )
lists+=( "https://pgl.yoyo.org/adservers/serverlist.php?hostformat=hosts&showintro=0&mimetype=plaintext" )
lists+=( "https://raw.githubusercontent.com/FadeMind/hosts.extras/master/UncheckyAds/hosts" )
lists+=( "https://v.firebog.net/hosts/Prigent-Ads.txt" )
lists+=( "https://raw.githubusercontent.com/DandelionSprout/adfilt/master/Alternate%20versions%20Anti-Malware%20List/AntiMalwareHosts.txt" )
lists+=( "https://osint.digitalside.it/Threat-Intel/lists/latestdomains.txt" )
lists+=( "https://v.firebog.net/hosts/Prigent-Crypto.txt" )
lists+=( "https://v.firebog.net/hosts/RPiList-Malware.txt" )
lists+=( "https://v.firebog.net/hosts/RPiList-Phishing.txt" )
lists+=( "https://zerodot1.gitlab.io/CoinBlockerLists/hosts_browser" )
lists+=( "https://hostfiles.frogeye.fr/firstparty-trackers-hosts.txt" )
lists+=( "https://urlhaus.abuse.ch/downloads/hostfile" )
lists+=( "https://bitbucket.org/ethanr/dns-blacklists/raw/8575c9f96e5b4a1308f2f12394abd86d0927a4a0/bad_lists/Mandiant_APT1_Report_Appendix_D.txt" )
lists+=( "https://phishing.army/download/phishing_army_blocklist_extended.txt" )
lists+=( "https://gitlab.com/quidsup/notrack-blocklists/raw/master/notrack-malware.txt" )
lists+=( "https://s3.amazonaws.com/lists.disconnect.me/simple_ad.txt" )
lists+=( "https://raw.githubusercontent.com/AssoEchap/stalkerware-indicators/master/generated/hosts" )
lists+=( "https://raw.githubusercontent.com/StevenBlack/hosts/master/alternates/gambling/hosts" )
lists+=( "https://www.github.developerdan.com/hosts/lists/ads-and-tracking-extended.txt" )
lists+=( "https://www.github.developerdan.com/hosts/lists/amp-hosts-extended.txt" )
lists+=( "https://www.github.developerdan.com/hosts/lists/dating-services-extended.txt" )
lists+=( "https://blocklistproject.github.io/Lists/ads.txt" )
lists+=( "https://blocklistproject.github.io/Lists/alt-version/fraud-nl.txt" )
lists+=( "https://blocklistproject.github.io/Lists/gambling.txt" )
lists+=( "https://blocklistproject.github.io/Lists/malware.txt" )
lists+=( "https://blocklistproject.github.io/Lists/ransomware.txt" )
lists+=( "https://blocklistproject.github.io/Lists/phishing.txt" )
lists+=( "https://big.oisd.nl/" )

echo "Starting download of all lists..."
curl -O "${lists[@]}" | grep -v "#" | grep -v "! " | grep -v "*." | sed 's/0.0.0.0//' | sed 's/127.0.0.1//' | sed -e 's/^[ \t]*//' >> $templist
echo "Done downloading lists..."

# Sort the aggregated results and remove any duplicates
# Remove entries from the whitelist file if it exists at the root of the current user's home folder
echo "Removing duplicates and formatting the list of domains..."
cat $templist | sed $'s/\r$//' | sort | uniq | sed '/^$/d' | awk -v "IP=$blockip" '{sub(/\r$/,""); print IP" "$0}' > $list

echo "Creating Finalized hosts file (/tmp/hosts.txt)"
echo "by running 'cat /etc/hosts.sav $list > $final'"
cat /etc/hosts.sav $list > $final

# Count how many domains/whitelists were added so it can be displayed to the user
blocked=$(cat $list | wc -l | sed 's/^[ \t]*//')
echo "$blocked ad domains blocked."

#Whitelist specified domains with sed -i '/example.com/d' /tmp/adblock/hosts.txt or hosts.deny
sed -i '/ewr1.vultrobjects.com/d' /tmp/adblock/hosts.txt

# Apply hosts
cp -v /tmp/adblock/hosts.txt /etc/hosts

# Below is duplicating all work but for hosts.deny
hosts="ALL:"
hostsdeny="hosts.deny"
tempdeny="$hostsdeny.tmp"
cat $templist | sed $'s/\r$//' | sort | uniq | sed '/^$/d' | awk -v "IP=$hosts" '{sub(/\r$/,""); print IP" "$0}' > $tempdeny
echo "Creating Finalized hosts.deny file (/tmp/hosts.deny)"
cat $tempdeny > $hostsdeny

#Apply hosts.deny
cp -v /tmp/adblock/hosts.deny /etc/hosts.deny