Context

Get comfortable navigating through the Linux CLI

In cyber security, Linux is everywhere, powering servers, security tools, and even hacking environments. However, before you can defend systems or investigate incidents, you need to know how to navigate the Linux OS using the command-line interface (CLI).

Starting hypothesis

• Understand what the Linux terminal is and what it's used for.
• Feel comfortable interacting with the Linux environment.
• Navigate through the Linux filesystem with basic commands.

Method / Used Tools

The Terminal in Linux and Cybersecurity

The terminal is a text-based interface that allows direct interaction with a Linux system. Instead of using a graphical interface with windows and icons, commands are typed manually to instruct the operating system exactly what action to perform.

In cybersecurity, the terminal is not just an alternative interface — it is a fundamental tool. It is preferred because:

• It is significantly faster than navigating with a mouse.
• It provides deeper and more precise system control.
• Many security tools are designed to work exclusively in a terminal environment.

Mastering the terminal is therefore a core skill for enumeration, exploitation, and privilege escalation.

Interacting With the Terminal

Where Am I? – pwd

When opening a terminal session, one of the first actions should be identifying your current location in the filesystem. This is done using:

pwd