Bash

Learn the Docker commands developers use most often to build images, run containers, inspect applications, manage images, view logs, and clean up unused resources.

Build a practical semantic search system with Python and Sentence Transformers. Learn how text becomes embeddings, compare queries with documents, rank results by similarity, and turn the prototype into a reusable search component.

Learn how to use Wireshark to capture and analyze network traffic. Understand packets, protocols, display filters, TCP conversations, DNS requests, HTTP traffic, and a practical troubleshooting workflow.

Learn how npm manages JavaScript project dependencies, scripts, versions, and lockfiles. Build a practical Node.js project and understand package.json, npm install, npm scripts, devDependencies, and package-lock.json.

Learn how Nmap port scanning works by running practical scans against a local machine and an authorized test target. Understand open, closed, and filtered ports, service detection, useful scan options, and how to turn Nmap output into actionable security information.

Learn how real data science starts before machine learning. Work with a messy sales dataset in Python, clean missing and inconsistent values, explore patterns with pandas, visualize business trends, and turn raw CSV data into practical recommendations.