In this page: http://docs.mongodb.org/ecosystem/tutorial/getting-started-with-hadoop/,
a couple tips would be helpful for those that don't use the Git command line often. Git clone by default in my environment installed to etc/profile.d but I had to look around a little bit. Also it made my directories owned by root, which caused issues later running the example with sudo. We could direct the user to clone to a specific directory ( and make sure it is owned by the user. Running the example with sudo later made it so JAVA_HOME was not seen and the build failed.