Data Science Toolbox
The Data Science Toolbox is both (1) a collection of command-line tools that facilitate the obtaining, scrubbing, and exploring of data and (2) a Vagrant environment for installing these command-line tools.
I am aware that this repository is in dire need of some proper documentation. While I am working on this, you can read the following two blog posts to learn more about the command-line tools and the Vagrant environment, respectively.
License
The Data Science Toolbox is licensed under the GPLv3.