Some commands

Some commands I often use

Qemu

qemu-img.exe create -f qcow2 kali.qcow2 60G

qemu-system-x86_64.exe  -m 4G -smp 2 -hda C:\Users\chch\Downloads\vm_qemu\kali.qcow2 -boot d -cdrom .\kali-linux-2026.1-installer-amd64.iso -vga virtio

Using pandoc to convert docx to md file for github

Extract images from docx files: pandoc input.doc -t gfm --extract-media=./images -o index.md

Convert docx to md pandoc -f docx -t markdown -o input.md input.docx

Check listening ports

netstat -ant

Nmap scan - general

nmap -sS <target IP>

Docker

# Quick install script (Linux)
curl -fsSL https://get.docker.com | sh

# Add yourself to docker group (avoids sudo)
sudo usermod -aG docker $USER

Write ISO to usb

sudo dd bs=4M if=./ubuntu-26.04-live-server-amd64.iso of=/dev/sdb1 status=progress oflag=sync