File that takes in a file of IP addresses with CIDR blocks. It then creates a new config file based on the specification. For r/programming_request https://www.reddit.com/r/programmingrequests/comments/aorj14/script_to_enter_contents_of_text_file_into/

config_maker.sh

#!/usr/bin/env bash
# This file takes in one argument (the absolute path of the generate NETFLIX file with IPs)

filename=$1
if [ -z $filename ]
then
  echo "No Filename specified! Exited."
  exit
fi

echo "Looking for file ${filename}"

ip_addrs=
ip_addrs_no_mask=

mapfile -t ip_addrs < $filename

for ip in "${ip_addrs[@]}"
do
  fixed_ip=$( echo "$ip" | cut -f1 -d"/")
  ip_addrs_no_mask+=$(echo "${fixed_ip} ")
done

newfile="new_config"
cat <<EOM > $newfile
option interface 'wan'

option comment 'Domains'

option remote_addresses '${ip_addrs_no_mask}'
EOM