Install btsync on Debian and Ubuntu

btsync.sh

#!/bin/bash
apt-key adv --keyserver keys.gnupg.net --recv-keys 6BF18B15
CODENAME=$(lsb_release -cs | sed -n '/lucid\|precise\|quantal\|raring\|saucy\|trusty\|squeeze\|wheezy\|jessie\|sid/p')
echo "" >> /etc/apt/sources.list
echo "#### BitTorrent Sync - see: http://forum.bittorrent.com/topic/18974-debian-and-ubuntu-server-packages-for-bittorrent-sync-121-1/" >> /etc/apt/sources.list
echo "## Run this command: apt-key adv --keyserver keys.gnupg.net --recv-keys 6BF18B15" >> /etc/apt/sources.list
echo "deb http://debian.yeasoft.net/btsync ${CODENAME:-sid} main" >> /etc/apt/sources.list
echo "deb-src http://debian.yeasoft.net/btsync ${CODENAME:-sid} main" >> /etc/apt/sources.list
unset CODENAME
apt-get update
apt-get -y install btsync