In this category, you can see all articles related to Unix or Linux operating System.
Environment & Shell Customization (Aliases/Functions/.Bashrc) Stop cd-ing into directories just to see what is inside 🧩 The Challenge You know that reflex where you type cd followed by ls over...
Permissions & Security (Chmod/Chown/ACLs/SELinux/AppArmor) Keep users from trashing shared project files 🧩 The Challenge Ever set up a shared directory for a dev team, made it `777` (don’t lie, we’ve...
Logging & Journald Stop watching journald eat your disk space alive 🧩 The Challenge Dealing with a full root partition because journald decided to hoard three years of logs is...
Backup & Recovery (Rsync/Tar/Dd) Stop piping tar through compression when the disk is already dying 🧩 The Challenge Dealing with a drive that is throwing I/O errors is a special...
Shell Scripting & Automation Stop making insecure or messy temporary files in your shell scripts Technical Briefing | 10/5/2026 You’ve written that quick utility script, right? The one that needs...
Networking & Firewall (Ss/Netstat/Iptables/Curl) Stop getting burned by silent curl timeouts 🧩 The Challenge You finally pushed that API integration to production only to find it hanging indefinitely because the...
Text Processing (Grep/Sed/Awk) Stop letting multi-line log entries ruin your grep game 🧩 The Challenge Dealing with Java stack traces or JSON blobs that span ten lines is a nightmare...
Container Basics On Linux (Namespaces/Cgroups) Stop guessing what a container process can actually see 🧩 The Challenge Dealing with a container that behaves like it’s in a different universe is...
SSH & Remote Administration Stop worrying if your SSH session will drop before you finish that massive config change 🧩 The Challenge Everyone has had their heart skip a beat...
Observability & Logging (Journald, EBPF Tracing) Stop wondering why your binary is silently ignoring its config file Technical Briefing | 10/5/2026 You have spent three hours tweaking a config file,...