Elasticsearch installation

Debian / Ubuntu

$ wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.11.deb
# dpkg -i elasticsearch-0.90.11.deb

CentOS

$ wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-0.90.11.noarch.rpm
$ rpm -i elasticsearch-0.90.11.noarch.rpm

install path :
/usr/share/elasticsearch/bin

References :
Elasticsearch.org Download ELK | Elasticsearch 
Elasticsearch.org Announcing Deb And Rpm Repositories | Blog | Elasticsearch