#!/bin/bash echo "" > pre-adblock.txt #Adblock lists download while read p; do echo "#!MARKER- Begin of $p" >> pre-adblock.txt wget -qO - $p >> pre-adblock.txt sleep 2 done all-adblock.txt #Add own rules cat own-rules.txt >> all-adblock.txt #Remove duplicate lines awk '!seen[$0]++' pre-adblock.txt >> all-adblock.txt