anchor.diff:  ["source","sh",subs="attributes,callouts"]
   ----------------------------------------------------------------------
   sudo apt-get install openjdk-7-jre
  -curl -L -O https://download.elastic.co/logstash/logstash/packages/debian/logstash_{LS-version}-1_all.deb
  -sudo dpkg -i logstash_{LS-version}-1_all.deb
  +curl -L -O https://download.elastic.co/logstash/logstash/packages/debian/logstash_5.0.0~alpha1-1_all.deb
  +sudo dpkg -i logstash_5.0.0~alpha1-1_all.deb
   ----------------------------------------------------------------------
   
   *rpm:*
  
positive.code: ["source","sh",subs="attributes,callouts"]
  ----------------------------------------------------------------------
  sudo yum install java-1.7.0-openjdk
  curl -L -O https://download.elastic.co/elasticsearch/elasticsearch/elasticsearch-{ES-version}.rpm
  sudo rpm -i elasticsearch-{ES-version}.rpm
  sudo service elasticsearch start
  ----------------------------------------------------------------------
  
  
negative.code: ["source","sh",subs="attributes,callouts"]
  ----------------------------------------------------------------------
  # install Java, e.g. from: https://www.java.com/en/download/manual.jsp
  curl -L -O https://download.elasticsearch.org/elasticsearch/release/org/elasticsearch/distribution/zip/elasticsearch/5.0.0-alpha1/elasticsearch-5.0.0-alpha1.zip
  unzip elasticsearch-5.0.0-alpha1.zip
  cd elasticsearch-5.0.0-alpha1.zip
  ./bin/elasticsearch
  ----------------------------------------------------------------------
  
  