...It includes lecture notes, exercises, and sample solutions that encourage hands-on practice rather than passive reading. The curriculum demystifies tools like bash, vim, git, and make, showing how to combine them into efficient workflows that scale from homework to production systems. Lessons dig into practical topics such as environment management, job control, shell pipelines, profiling, and reproducibility, with an emphasis on habits that save time and prevent errors. The materials are designed to be approachable for beginners yet still valuable to advanced users who want to sharpen their tooling. ...