A small bash script for Android that adds entries to the /etc/hosts file (particularly, to block Skype ads)

android-hosts-patcher.py

#!/system/xbin/bash
# This script helps block access to specific addresses via an Android phone.
# NOTE: This script must be run as root!
#
# Author: IceDragon <icedragon@quickfox.org>
hosts="
	mobileads.msn.com
	track.mobiyield.com
"

###--# Execution #--#############################################################
mount -o remount,rw /system
for h in $hosts; do
	echo "127.0.0.1 $h" >> /etc/hosts
done
mount -o remount,ro /system

echo "OK"