sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
echo "deb http://repo.mongodb.org/apt/ubuntu "$(lsb_release -sc)"/mongodb-org/3.0 multiverse" | \
    sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list
sudo apt-get update
sudo apt-get install -y mongodb-org
service mongod status

exit

version()

show dbs
show databases

use <database_name>

db

db.dropDatabase();

db.copyDatabase('old_name', 'new_name'); # Copy the database to a new database
use <old_name> # Switch to the database you wish to delete
db.dropDatabase(); # Destroys the selected database

show collections