Verify checksum using bash command on Linux

Check and scan your Windows boot apps for viruses with free tool Autoruns

List all installed drivers using one command, driverquery (Windows)

List all loaded dlls using ListDlls (Windows)

Monitor network connections using TCPView(Windows)

Ghidra search for malware address string

Use Radare2 to inspect a suspicious executable file (malware).

Use you-get to download HD videos from web

Show all active stored Wifi SSID and passwords in one terminal command (Linux)

Recover deleted files with Photorec (part of TestDisk).

Scan your Linux for security flaws using Lynis (one command)

Inspect ISO file in Autopsy (Sleuth Kit)

Use ngrep to track http requests

Aircrack password crack attempt with custom wordlist (You need WPA handshake file)

Nmap Slowloris ddos vulnerability check

Copy/download entire website using httrack (Linux)

Use Process Explorer to scan running processes via virustotal

Quick format parition/drive using Diskpart(Windows)

Install latte-dock on kde plasma Linux for a better look (Ubuntu, Debian)

Twitter remove log in popup box

Search for file in Linux terminal

Make your Linux terminal background transparent

Nmap OS and service scan

Send a simple TCP packet with a message using Scapy

Use wget command to download a html page (Linux)