Download and install elasticSearch 0.90.0 as a service.

es.sh

echo "This script requires superuser access to install apt packages."
echo "You will be prompted for your password by sudo."

# clear any previous sudo permission
sudo -k
cd ~
sudo sh <<SCRIPT
apt-get update
apt-get install openjdk-7-jre-headless -y


### Check http://www.elasticsearch.org/download/ for latest version of ElasticSearch and replace wget link below

# NEW WAY / EASY WAY
wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.0.deb
dpkg -i elasticsearch-0.90.0.deb
service elasticsearch start
SCRIPT