Fundamentals
Linux & CLI Fundamentals
Learn to navigate the terminal like a hacker. Filesystems, files, permissions, pipes, and network commands — all hands-on in a live terminal.
Beginner45 min8 lessons2 hands-on
Free account. No credit card.
You'll be able to
- ✓Navigate and manipulate the Linux filesystem from the command line
- ✓Read, search, and filter file contents with grep, cat, and find
- ✓Understand file permissions and what they mean for security
- ✓Chain commands with pipes to build recon one-liners
- ✓Make HTTP requests and check open ports from the shell
