The Shell & The Kernel

The Core: Kernel vs. Shell

• The Kernel: This is the core of the operating system. It talks directly to the hardware (CPU, RAM, Disk) and manages resources. You rarely interact with it directly.
• The Shell: This is the interface you use. It takes your commands (like ls or cd), interprets them, and passes instructions to the kernel. The most common shell is Bash (Bourne Again Shell).

Basic Navigation:

• pwd (Print Working Directory): Shows you where you are.
• ls (List): Shows files in the current directory.
• cd (Change Directory): Moves you to a different folder.