Developer Productivity6 min read
SSH Keys Explained: Generate, Add and Use Them Safely
Create an SSH key with ssh-keygen, add it to a server and to GitHub, use ssh-agent and a config file, and fix the most common SSH permission errors.
Developer Productivity
Workflows, command-line skills and habits that save developers hours every week.
8 guides
Developer Productivity6 min read
Regex Cheat Sheet: Syntax and Real Examples You Can Copy
A practical regular expression cheat sheet: characters, quantifiers, groups, lookarounds and flags, plus tested patterns for emails, dates, logs and more.
Developer Productivity6 min read
Makefiles for Modern Projects: A Practical Tutorial
Use a Makefile as your project's command menu: targets, phony targets, variables, dependencies, a self-documenting help target and a real-world example.
Developer Productivity6 min read
How to Write a Good README (With a Copy-Paste Template)
What every README needs, in the order readers look for it: a clear summary, quick start, usage, configuration and contributing — plus a template you can reuse.
Developer Productivity7 min read
How to Undo Almost Anything in Git (Without Losing Work)
Undo the last commit, unstage files, discard changes, fix a bad merge or recover deleted commits. Every Git undo scenario with the exact command to use.
Developer Productivity7 min read
25 Git Commands Every Developer Should Know (With Examples)
The Git commands you will use every week, grouped by task, with real examples and the safe way to undo mistakes before they reach your team.
Developer Productivity7 min read
Cron Expressions Explained: Syntax, Examples and Common Mistakes
Learn to read and write cron expressions with clear examples, a field-by-field breakdown, and the mistakes that make scheduled jobs silently fail.
Developer Productivity7 min read
Bash Scripting Basics: A Practical Guide for Developers
Write reliable Bash scripts: shebang and strict mode, variables, quoting, conditionals, loops, functions, arguments and exit codes, with a complete example script.