Posts
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Techniques for Writing Robust, Reliable Bash Scripts
Write bash scripts that don't silently fail — set -euo pipefail, error handling, input validation, and logging patterns for production scripts.
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Disabling Discord’s Activity Tracking
Discord tracks what you're running. Here's how to turn off activity status, game detection, and telemetry so your app habits stay private.
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Optimize Ubuntu Logs: btmp Log Rotation
btmp logs failed logins and grows forever on internet-facing servers. Set up logrotate to keep it under control before your disk fills up.
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Navigating the Storm: Analysis of Intel’s 13th and 14th Gen CPU Instability Issues
Intel 13th and 14th gen CPUs have a documented instability problem. Here's what's happening, who's affected, and what Intel is doing about it.
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Ansible: Task and Role Inclusions for Efficient Automation
Stop copy-pasting Ansible tasks across playbooks — use include_tasks, import_tasks, and roles to keep your automation DRY and maintainable.
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Preserving Bash History in Multiple Terminal Windows
By default bash history is lost across multiple terminal sessions. Fix it with HISTAPPEND and PROMPT_COMMAND so nothing gets overwritten.
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Finding the PID of a Process Using a Specific Port in Linux
Something's squatting on port 8080 and you need to know what. ss, lsof, and fuser one-liners to find and kill the culprit fast.
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Differences Between nohup, disown, and & in Linux
nohup, disown, and & all keep processes running after logout — but they work differently. Here's which one to reach for and why.
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the lost+found Directory in Linux
What is lost+found and why does it exist? fsck puts recovered file fragments there after a crash — and no, you can't delete it.
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Understanding printf vs echo in Bash
echo is convenient but inconsistent across systems; printf is portable and precise — know when to use each and avoid the gotchas.
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Understanding Grep: A Comprehensive Guide
grep is more powerful than you think — regex patterns, context flags, recursive search, and piping tricks that save hours of log digging.
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The Role of Antivirus and Endpoint Detection and Response Systems
AV vs EDR — traditional antivirus signatures vs behavioral endpoint detection. What each catches, what it misses, and what you actually need.
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