Statistic for iptables ssh blocker

blocker_stats.sh

#!/bin/bash

declare -A hash

for i in $(zgrep Blocked /var/log/syslog* | awk '{print $12}' | cut -d'=' -f2);
do
    if [ ! ${hash[$i]} ];
    then
        hash[$i]=1
    else
        hash[$i]=$( expr ${hash[$i]} + 1 )
    fi
done

for i in ${!hash[@]};
do
    echo -e "$i\t\t${hash[$i]}"
done