title: Linux Fundamentals Walkthrough date: 2025-05-22 summary: A deep dive into Linux fundamentals on TryHackMe - commands, permissions, and scripting. tags: linux, fundamentals, command-line

Spent time today working through the Linux Fundamentals rooms. Here are my key takeaways.

Key Commands Learned

• ls, cd, pwd for navigating the filesystem
• cat, head, tail for reading files
• grep for searching through text
• find for locating files
• chmod for changing file permissions

File Permissions

Understanding the rwx (read, write, execute) system was crucial. Each file has permissions for the owner, group, and others.

Shell Scripting Basics

Started with basic bash scripting:

#!/bin/bash
echo "Hello, World!"

Simple but powerful when combined with grep and other tools for automation.

Next Steps

Next room on the list: Windows Fundamentals.