Install Elasticsearch in Ubuntu 12.04 LTS

Easy install Elasticsearch in Ubuntu 12.04

cd ~
sudo apt-get update
sudo 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-0.90.7.deb
sudo dpkg -i elasticsearch-0.90.7.deb
sudo service elasticsearch start

# OLD WAY / HARD WAY
wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.7.tar.gz
tar -xf elasticsearch-0.90.7.tar.gz
rm elasticsearch-0.90.7.tar.gz
sudo mv elasticsearch-* elasticsearch
sudo mv elasticsearch /usr/local/share

curl -L http://github.com/elasticsearch/elasticsearch-servicewrapper/tarball/master | tar -xz
sudo mv *servicewrapper*/service /usr/local/share/elasticsearch/bin/
rm -Rf *servicewrapper*
sudo /usr/local/share/elasticsearch/bin/service/elasticsearch install
sudo ln -s `readlink -f /usr/local/share/elasticsearch/bin/service/elasticsearch` /usr/local/bin/rcelasticsearch

sudo service elasticsearch start
#curl http://localhost:9200

Source : https://gist.github.com/wingdspur/2026107