export ELASTIC_SEARCH_HOME="${APPLICATIONS_HOME}/elasticsearch-6.4.3"
   export ELASTIC_SEARCH_BIN="${ELASTIC_SEARCH_HOME}/bin"

   alias elasticsearch-restart='sudo systemctl restart elasticsearch.service'
   alias elasticsearch-start='sudo systemctl start elasticsearch.service'
   alias elasticsearch-stop='sudo systemctl stop elasticsearch.service'
   alias elasticsearch-status='sudo systemctl status elasticsearch.service'
   alias elasticsearch-enable='sudo systemctl enable elasticsearch.service'
   alias elasticsearch-disable='sudo systemctl disable elasticsearch.service'
    
   export KIBANA_HOME="${APPLICATIONS_HOME}/kibana-6.4.3"
   export KIBANA_BIN="${KIBANA_HOME}/bin"

   alias kibana-restart='sudo systemctl restart kibana.service'
   alias kibana-start='sudo systemctl start kibana.service'
   alias kibana-stop='sudo systemctl stop kibana.service'
   alias kibana-status='sudo systemctl status kibana.service'
   alias kibana-enable='sudo systemctl enable kibana.service'
   alias kibana-disable='sudo systemctl disable kibana.service'
    
   export LOGSTASH_HOME="${APPLICATIONS_HOME}/logstash-6.4.3"
   export LOGSTASH_BIN="${LOGSTASH_HOME}/bin"

   alias logstash-restart='sudo systemctl restart logstash.service'
   alias logstash-start='sudo systemctl start logstash.service'
   alias logstash-stop='sudo systemctl stop logstash.service'
   alias logstash-status='sudo systemctl status logstash.service'
   alias logstash-enable='sudo systemctl enable logstash.service'
   alias logstash-disable='sudo systemctl disable logstash.service'

   $ sudo cp elasticsearch.service /etc/systemd/system
   $ sudo cp kibana.service /etc/systemd/system
   $ sudo cp logstash.service /etc/systemd/system
   $ sudo systemctl daemon-reload

   $ elasticsearch-start
   $ kibana-start
   $ logstash-start