Linux Fundamentals

A beginner's reference guide to essential Linux commands for navigating and editing files.

Eliy Yang Thu Feb 19 2026 18:00:00 GMT-0600 (Central Standard Time)

Linux Fundamentals

Commands

• cd directory_name - This allows you to change to any directory.
• ls - This will show you the contents of the directory you are in.
• touch filename.txt - This will create a text file.
• vi filename.txt - This will open that file so you can edit it.
  • i - Press i when in the file to start editing it.
  • ESC - Press the ESC key to exit out of editing mode.
  • :wq - Enter :wq to save your edits and to exit at the same time.