Run Linux commands using Popfizz Sandbox Terminal feature. This is where the Sandbox is located: https://popfizz.io/sandbox?type=cybersecurity&project=Cybersecurity
Here are the features:

Files and Folders - This is where files and folders are managed.
Text Editor - If a text file is selected, it can be edited in this area.
XWindow - This is where visual output is displayed.
Terminal - This is where you can run Linux commands.
<The Terminal>
Use the Terminal to run your commands. The terminal runs a program called the bash shell which interprets commands and either executes them directly or passes them on to other programs.

The bash shell prompt is the $
. It is not part of the command.
