Linux & Unix Tools

Introduction In real production incidents, engineers don’t reach for tools one by one. They don’t think: “Now I’ll use grep. Now awk. Now jq.” They think: “What’s broken, where is the signal, and how fast can I get clarity?” And almost every time, the fastest path to clarity is a combination of simple tools, chained […]

Introduction Modern DevOps runs on JSON. APIs return it.Cloud CLIs output it.Kubernetes emits it.CI/CD systems depend on it. And yet, many engineers still struggle to extract meaning from JSON quickly. This is where jq becomes indispensable. jq is not a JSON parser.It’s a decision-making tool for structured data. This post explains how jq is used

Introduction Most engineers think of awk as: In reality, awk is one of the most practical DevOps tools when you need to: awk is not about parsing text —it’s about extracting signal from structured chaos. This post focuses on how awk is actually used in real DevOps work, especially under time pressure. Why awk Still

Introduction sed is one of those tools many engineers know exists but rarely feel confident using. It’s often described as: And yet, in real DevOps work, sed quietly solves problems that would otherwise require scripts, editors, or manual intervention. sed is not about clever one-liners.It’s about safe, repeatable text transformation at scale. This post explains

Introduction Most engineers learn grep early in their careers. They use it to search a file, feel productive, and move on. But in real DevOps and production environments, grep is not just a search tool — it’s a first-response instrument. When systems misbehave, logs explode, or incidents unfold in real time, grep is often the