Script will create subnets directory with subnets

do-subnets.sh

#!/bin/sh

# script will create 2 dirs iprange and subnets
# iprange dir will contain iprange tool
# subnets dir will contain GeoIP subnets files

# install iprange
mkdir iprange
cd iprange
wget https://raw.githubusercontent.com/haproxy/haproxy/master/contrib/iprange/Makefile
wget https://raw.githubusercontent.com/haproxy/haproxy/master/contrib/iprange/iprange.c
make
rm Makefile iprange.c
cd ..

# download GeoIP database
mkdir subnets
cd subnets
wget https://netcologne.dl.sourceforge.net/project/neustarwebtop/GeoIPCountryWhois.csv
cut -d, -f1,2,5 GeoIPCountryWhois.csv | ../iprange/iprange | sed 's/"//g' | awk -F' ' '{ print $1 >> $2".subnets" }'
rm GeoIPCountryWhois.csv
cd ..
rm -r iprange