How-to install MongoDB in Ubuntu 14.04 LTS

I. Install

1. Import the public key used by the package management system
   sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10


2. Create a list file for MongoDB
   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

3. Reload local package database
   sudo apt-get update

4. Install the latest stable version of MongoDB.
   sudo apt-get install -y mongodb-org


II. Run

1. Start mongod:
   sudo service mongod start


2. Stop:
   sudo service mongod stop


3. Restart:
   sudo service mongod restart


III. Uninstall

1. Stop mongoDB (cf II.2).

2. Remove Packages:
   sudo apt-get purge mongodb-org*


3. Remove Data Directories:
   sudo rm -r /var/log/mongodb
sudo rm -r /var/lib/mongodb


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sources:

• docs.mongodb.org : Install MongoDB on Ubuntu