Interactive exercises for Linux CLI text processing commands
Last month, I started learning a Python TUI framework called Textual. After working on a 4x4 board game, I made an interactive app to test your CLI text processing skills with 40 beginner to intermediate level exercises. The app is fairly basic in terms of features — only single input file, so no stdin data, multiple files, etc. Most of the exercises in this app is based on my Computing from the Command Line ebook (https://learnbyexample.github.io/cli-computing/preface.html). I hope to improve the TUI app to support all the 200+ exercises sometime next year.
Interactive exercises for Linux CLI text processing commands launched on December 10, 2022 with 69 votes, #827 of 3,688 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
This interactive terminal application provides 40 beginner to intermediate exercises for learning Linux CLI text processing commands. Built with Python's Textual framework, it lets users practice skills like grep, sed, and awk through hands-on challenges based on the creator's Computing from the Command Line ebook. The app currently supports single input files and aims to expand to 200+ exercises in the future. It's designed for developers and system administrators learning command-line text processing techniques.
written from the facts on this page · September 2026
From the sources
Terminal User Interface (TUI) apps. Contribute to learnbyexample/TUI-apps development by creating an account on GitHub.
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