← Back to CoursesEthical Hacking: Beginner

Neuroanatomy Explorer

Drag to rotate · scroll to zoom · click regions to explore

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Memory Deck

Flip each card and rate whether you knew it. Your score is saved.

Term
Definition

Deck complete — score saved.

Match the Pairs

Match each term to its definition. Finish the board to earn your score.

All matched — score saved.

Concept Constellation

Every key idea in this course, mapped as an explorable 3D constellation. Drag to rotate, scroll to zoom, click a node.

Click a node to read its definition.

Operating Systems and the Command Line

Manual: General · Subject: Cybersecurity

Get comfortable with operating systems, files, permissions, and basic command-line use.

Working in an OS

What an Operating System Does

An operating system manages hardware, applications, files, memory, and user accounts. Common examples include Windows, Linux, and macOS.

Why the Command Line Helps

The command line lets you perform tasks quickly and repeatably. It is especially useful for file navigation, automation, and security tools.

Basic Commands

ActionExample Idea
List filesShow what is in a folder
Change directoryMove to another folder
Print working directoryShow your current location
View file contentsRead a text file
Make a directoryCreate a new folder
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Practice Tip

Start with simple file and folder tasks before learning complex security tools.

What is one advantage of the command line?

Name one common operating system.

File and Permission Basics

File
A stored unit of data.
Folder/Directory
A container for files and other folders.
Permission
A rule controlling who can read, write, or execute.
Automation
Using scripts or commands to repeat tasks.

What does a directory do?