GOGeraldine Okekeinchummygeraldine.hashnode.dev·2d ago · 3 min readLearning Linux Through OverTheWire Bandit: Ownership and Text Search (Levels 6–8)The fourth article in my OverTheWire Bandit series examines two complementary search techniques: locating a file by ownership and size, then locating a specific record within a larger text file. Note00
ASAsep Sayyadinasepsayyad007.hashnode.dev·2d ago · 21 min readSudo vs Root: What's the Difference?The architectural differences between the root account and sudo delegation, how the SUID bit works, why visudo saves production servers, and how to manage privileges safely. When you first start work00
GOGeraldine Okekeinchummygeraldine.hashnode.dev·5d ago · 3 min readLearning Linux Through OverTheWire Bandit: Finding the Right File (Levels 4–6)The third article in my OverTheWire Bandit series shifts from filename handling to metadata-driven file discovery. The target files were not identifiable by name alone, so I examined their content typ00
ASAsep Sayyadinasepsayyad007.hashnode.dev·5d ago · 20 min readUnderstanding chmod Without Memorizing NumbersHow Linux file permissions actually work under the hood, why symbolic mode is your best friend, and how to stop blindly typing chmod 777. Every Linux engineer has been there. You write a brand-new ba00
ASAsep Sayyadinasepsayyad007.hashnode.dev·6d ago · 18 min read5 Things I Check First When a Linux Server Goes DownWhen a production machine drops offline or stops responding, guessing wastes precious minutes. Here is the exact five-step triage sequence I run to find the root cause and bring systems back online. 00
ASAsep Sayyadinasepsayyad007.hashnode.dev·Aug 12 · 14 min read8 Linux Myths Even Senior Engineers Still Fall For (And How They Hurt Production)Back in 2021, I worked alongside a systems engineer with over fifteen years of Unix and Linux experience. He could write complex AWK one-liners from memory and managed dozens of bare-metal database se00
ASAsep Sayyadinasepsayyad007.hashnode.dev·Aug 12 · 12 min readThe Biggest Linux Myths Beginners Still Fall ForLet's be honest, when I first heard about Linux, I thought it was this scary hacker thing where you type green text on a black screen all day. Turns out, I was dead wrong. If you're new to Linux, chan00
ASAsep Sayyadinasepsayyad007.hashnode.dev·Jul 27 · 4 min readHidden Linux Gems: 15 Lesser-Known Commands That Deserve More AttentionThere are no "secret" Linux commands hidden from experienced users. However, there are many excellent commands that are surprisingly underused. These can make you more productive and deepen your under00
AGAbhishek Gangurdeinragsystemedutech.hashnode.dev·Jul 18 · 13 min readZero to Hero - Linux Production Troubleshooting Commands ⚙️Real-Time Linux Production Scenarios SRE / DevOps Field Reference — Full Command Guide with Explanations Server is 100% Full Diagnose : 🧰 • df -hT Shows disk usage per mounted filesystem in hum00
BRBharan Reddyinbharanblog.hashnode.dev·Jul 2 · 3 min readGetting Started with Shell Scripting: User Creation, Loops, and ConditionsCreating Users using createusr.sh Creating Linux users manually becomes time-consuming when multiple accounts are needed. Shell scripting makes this process much easier. Script #!/bin/bash read -p "E00
