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Setting Up Clean Azure VNets, Subnets & Tagging
A Practical Lab Guide from Beginner to Pro.
Terraform Troubleshooting Guide: Fix the Errors Engineers Actually Hit
Diagnose Terraform initialization, validation, provider, authentication, state, drift, import, replacement, timeout, and CI failures with a safe workflow.
What is the difference between the working directory, the staging area, and a commit in Git?
The working directory is the actual files on disk, whatever state you've left them in. The staging area (the "index") is a snapshot of exactly what will go into the next commit; `git add` copies changes from the working directory into it, one file or hunk at a time, which is why you can commit only part of what you've changed. A commit is a permanent, immutable snapshot of the staging area at the moment you ran `git commit`, plus a pointer to its parent commit, which is what forms the project's history graph. Understanding that staging is a separate, explicit step - not just "what's changed" - explains why `git status` shows both staged and unstaged changes for the same file.