How to install elasticsearch head plugin ?

The original Elasticsearch package, it does not have the head plugin. To install, open terminal in Ubuntu or command line in Windows, change directory to folder elasticsearch/bin and run the command:  
plugin --install mobz/elasticsearch-head


The result of above command should like this:
-> Installing mobz/elasticsearch-head...
Trying https://github.com/mobz/elasticsearch-head/archive/master.zip...
Downloading ..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................DONE



So now run the elasticsearch engine and then open this page on your browser: http://localhost:9200/_plugin/head/ and discover Elasticsearch ;)