Fail2Ban-countries-count.sh

#!/bin/bash
## all Fail2Ban Log should be logged into /var/log/fail2ban.log then this will work
## you need geoiplookup to get it runningyou can install it with sudo apt install geoip-bin
cat /var/log/fail2ban.log* | grep Ban | sed 's/.*[Bb]an \(.*\)/\1/' | uniq | while read line; do geoiplookup $line; done | sort | uniq -c | sort -nr

needs geoiplookup
sudo apt-get install geoip-bin

needs geoiplookup
sudo apt-get install geoip-bin

I already point to that with my 2nd comment, I do not see a reason to tell it once more
Check out line 3