I love this short presentation on using the shell for data science. Many of the things hat are described in the presentation are just plain useful anyway, searching over csv files, finding things, renaming things. https://cdn.oreillystatic.com/en/assets/1/event/267/50%20reasons%20to%20learn%20the%20shell%20for%20doing%20data%20science%20Presentation.pdf ... (more)