Topic
5 articles · Terminal: practical guides, examples and explanations written by Aimran.
Web development
What a Docker image is, what a container is and how they relate, with the basic commands to create, list, stop and remove each one, plus the most frequent mistakes.
Web development
How to undo the last commit in Git with reset, revert and amend, which one to use when the commit is already pushed, and how to recover a commit you thought lost.
Developer tools
What each of the five fields of a cron expression means, what *, comma, hyphen and slash do, the mistakes that confuse most people and ready-made examples to copy.
Developer tools
Base64 turns binary data into text so it can travel safely. What it is, how much it grows the size, how to encode in JavaScript, Node.js and the terminal.
Technology
How DNS turns a domain into an IP address, what each record type does, what TTL and “propagation” are, and how to check your domain’s configuration with dig.