The Guide shows you Step-by-Step How to Install MongoDB NoSQL Database Community Edition Release for Linux Mint 14 Cinnamon desktop.
Finally, the post’s Content is Expressly Reduced to Give Focus to the Essentials Instructions and Commands.

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Open a Terminal Window
(Press “Enter” to Execute Commands)In case first see: Terminal QuickStart Guide.
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SetUp Apt Repo for Latest MongoDB Installation:
MongoDB Apt Repo Setup