How to install and run elasticsearch on a mac. Version number might be different so keep that consistent when installing.

elasticsearch_mac_install.sh

# download elasticsearch from their site and unzip (http://www.elasticsearch.org/download/)
# open a console in the download directory and pull down the elastic search service wrapper from github.

$ cd ~/Downloads
$ git clone https://github.com/elasticsearch/elasticsearch-servicewrapper.git elasticsearch-servicewrapper

# Now we will move the service into place
$ cd ~/Downloads
$ sudo mv elasticsearch-0.90.2 /usr/local/share
$ cd elasticsearch-servicewrapper
$ sudo mv service /usr/local/share/elasticsearch-0.90.2/bin
$ cd /usr/local/share
$ sudo ln -s elasticsearch-0.90.2 elasticsearch
$ sudo chown -R root:wheel elasticsearch

# start elastic search
$ cd /usr/local/share/elasticsearch
$ sudo bin/service/elasticsearch start 

# will be running on http://localhost:9200/
# You should see the following output 
#        Starting ElasticSearch...
#        Waiting for ElasticSearch...
#        .
#        .
#        .
#        running: PID:27882


# stopping elasticsearch
$ cd /usr/local/share/elasticsearch
$ sudo bin/service/elasticsearch stop