15 articles
Master the heart of modern development. Learn how Linux powers CI/CD pipelines. Understand 'Runners', 'Agents', and 'Build Servers'. Learn to write a deploy script that updates a production server securely from a GitHub or GitLab action.
Stop writing scripts that fail silently. Master the 'Safe Mode' of Bash. Learn to use 'set -e' for instant failure, 'set -x' for line-by-line debugging, and 'trap' to ensure your cleanup code runs even when a script crashes.
Don't repeat yourself. Master the art of modular Linux scripting. Learn to define re-usable Functions, understand the difference between Local and Global variables, and learn how to return values and status codes from your modules.
Master the art of high-volume automation. Learn to process hundreds of files in seconds using 'For' loops, and create persistent background tasks using 'While' loops. Discover and master the 'Until' logic.
Give your scripts a brain. Master the logic of decision making in Bash. Learn to use If-Else blocks, perform File Tests, compare strings/numbers, and use 'Case' statements for complex multi-choice scenarios.
Make your scripts intelligent and interactive. Master the use of User-Defined Variables, Environment Variables, and Command Substitution. Learn to ask users for information using the 'read' command.
Turn your commands into code. Learn the foundational anatomy of a Linux shell script. Master the 'Shebang' line, understand file execution bits, and learn to pass arguments from the command line into your script.
Master the essential tools for network diagnosis. Learn the modern 'ip' suite that replaced ifconfig. Understand how to use ping for connectivity, traceroute for path analysis, and identify network interface naming conventions.
Master the auxiliary tools for data manipulation. Learn to slice columns with cut, translate characters with tr, and perform frequency analysis with sort and uniq. Discover how to count lines, words, and bytes with wc.
Master the most powerful text processing tools in the Linux arsenal. Learn to search with grep, transform with sed, and extract data with awk. Turn massive logs into valuable insights using the pipeline philosophy.
Master the tools for inspecting files without leaving the terminal. Learn why 'less' is more than 'more', how to peek at the start or end of massive logs, and the indispensable power of real-time monitoring with 'tail -f'.
Understand the difference between a Terminal, a Shell, and a Console. Explore the popular shells (Bash, Zsh, Fish) and learn how the shell interprets your commands through the environment and history.
Your first 10 minutes in a Linux terminal. Learn to decipher the shell prompt, navigate the system, and use essential discovery commands. Master the basic 'who, what, where' of a Linux session.
Learn the vocabulary of Docker. Master the fundamental commands for pulling images, running containers, and managing your local environment.
Break the limits. Learn how to run shell commands on your server and write custom JavaScript functions directly inside n8n to handle complex data scenarios.