I’ll be honest with you. I’m not a professional sysadmin. I don’t work in IT for a living.
I’m someone who got obsessed with self-hosting, ended up running a couple of Proxmox servers at home,
several Docker stacks, Home Assistant, n8n, Node-RED, and a VPS or two.

At some point I realised I was spending more time Googling commands than actually using them.

Every single time. The same commands.

What’s the tar flag to extract again?
How do I check what’s listening on a port?
What’s the Proxmox snapshot command again?

So I built myself a reference.

Then it got out of hand.

Forty-three pages later, I’ve got something I’m genuinely proud of — and I think a lot of you will find it useful too.

📘 What’s Inside

The Linux Command Cheat Sheet is a printable A5 booklet covering the commands and workflows I actually use day-to-day.

⚡ Daily Linux Commands

ls -la
find
du -sh *
chmod
chown

🧠 Process Management

ps aux
kill
systemctl
journalctl

The command I always forget:

journalctl -xe

Check logs before rebooting anything.

🌐 Networking & Diagnostics

ip a
ss -tulpn
rsync
dig

The networking command that saves ridiculous amounts of time:

ss -tulpn

Instantly shows:

• Processes
• Ports
• Listening services
• Socket state

🐳 Docker & Compose

docker system prune -a

⚠️ Removes everything unused. Run carefully.

🔥 Premium Additions

👨‍💻 Perfect For

• Linux learners
• Homelab enthusiasts
• Docker users
• Self-hosters
• Sysadmins
• IT students