Lab Activity
Linux Command Line Fundamentals
Learn to use the Linux command line with confidence as you explore directories, view files and run core system commands.
Overview
In this lab, you'll work through the core commands that every Linux administrator needs to handle from day one. You'll explore documentation tools, navigate the filesystem with confidence, create and inspect files, and use essential utilities that show up across real systems and the LFCS exam. This is the groundwork that makes everything else in Linux feel easier and more predictable.
Learning Outcomes
By the end of this lab, you'll be able to:
- Look up command details using man pages, help flags and info pages.
- Move around the filesystem using absolute and relative paths.
- Create, view and modify files with tools like mkdir, cat, head, tail and sort.
- Check command locations and file metadata with utilities like which and stat.
- Read system logs and analyze output directly from the terminal.
Key Concepts
- Command Documentation: How Linux exposes built-in help, man pages and info pages.
- Filesystem Navigation: Understanding directory structure, paths and movement with cd, pwd and ls.
- File Manipulation: Creating files, redirecting output and inspecting content.
- System Utilities: Commands that reveal metadata, logs and binary locations.
- Text Processing Tools: Using wc, sort, head and tail to work with data efficiently.
Why It Matters
- Forms the backbone of LFCS: these are the exact skills the exam expects you to know cold.
- Makes troubleshooting easier: you'll know where to look and how to inspect what matters.
- Builds habits that scale: scripting, automation and server management all start here.
- Improves speed and accuracy on the terminal: essential for real-world operations work.
- Boosts confidence: once you can move around the CLI smoothly, the rest of Linux opens up.