Linux Command Line & Sysadmin Cheat Sheet Bundle

For junior-to-mid Linux sysadmins, cert studiers, and homelab operators who want organized command references — not another tab of man pages.

You already know most of these commands. The problem is remembering the exact flag at 11 PM when something is broken and your brain is at 40% capacity. That's what this bundle is for. Three focused reference cards, built by a sysadmin, organized the way you actually think when you're working — by task category, not alphabetically. Color-coded so you can scan instead of read. Cert-aligned so it doubles as a study companion for CompTIA Linux+ (XK0-005) and RHCSA (EX200). These aren't tutorial PDFs or video course notes. They're field references. You print them, pin them, and stop Googling the same commands twice.

What's Inside

📦Card 1 — Core Commands Reference — Six color-coded categories: File Operations, Process Management (including cron/crontab scheduling), Networking, Permissions & Users, Logs & Monitoring, and Storage & Disk. Full command syntax with flags explained. Cert alignment table for Linux+ and RHCSA included.
📦Card 2 — Bash Scripting Quick-Ref — Script anatomy with set -euo pipefail, variables, string operations, arrays, conditionals, loops, functions, I/O redirection, error handling with traps, argument parsing, and 8 battle-tested reusable patterns.
📦Card 3 — Single-Page Field Card — Distilled survival reference covering all six categories plus a cron shorthand row, a Bash script header template, and an Emergency Checklist. Designed to print landscape and pin to the wall.