Command Line Fundamentals: Learn to use the Unix command-line tools and Bash shell scripting

The command line becomes much easier to use when its pieces make sense together. Command Line Fundamentals takes readers from Bash basics and filesystem navigation to the command combinations and scripts that can handle more involved tasks. Its hands-on progression makes it a practical introduction for programmers who know their way around graphical interfaces and want to work more confidently in a shell.

Start with the everyday shell

Early chapters cover command-line terminology, navigating and modifying files, shell history, keyboard shortcuts, autocomplete, and wildcards. These foundational skills help make routine work in the terminal feel more deliberate and less like guesswork.

Connect commands to work with data

The book then introduces input and output, redirection, pipes, and Unix text-processing utilities. Rather than treating commands as isolated tools, it shows how they can be combined to filter, transform, and analyze information.

Build toward Bash scripting

Later material explores command lists, job control, regular expressions, environment variables, expansion, conditionals, loops, and functions. The focus gradually shifts from issuing commands to writing scripts that automate work.

Practise with substantial examples

Exercises and activities appear throughout, with practical case studies on extracting chess games from PGN files and analyzing New York City yellow taxi trip data. These examples give readers a way to apply shell concepts to recognizable data-processing problems.

A useful next step for GUI-first programmers

Readers looking to understand Bash, use common Unix tools, and begin automating command-line tasks will find a clear route through the subject, from basic navigation to more advanced shell techniques.