Linux for Developers Course
Linux for Developers
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Beginner

Linux File System Overview

Definition

The hierarchical structure used by Linux to organize files and directories. Everything starts from the single 'root' directory (`/`), unlike Windows which uses drive letters (`C:\`, `D:\`). In Linux, 'Everything is a file'.

Explain Like I'm New

An upside-down tree. At the very top is the Root (`/`). From there, branches go out to `/home` (your files), `/etc` (settings), and `/bin` (programs).

Real World Example

If you plug in a USB drive on Windows, it becomes `E:\`. On Linux, there is no `E:\`. The USB drive is mounted as a folder directly into the main tree, usually at `/media/usb`.

Common Use Cases

  • •Finding configuration files
  • •System navigation

Interview Questions

basic

  • What does the forward slash `/` represent by itself in Linux?

intermediate

  • What is typically stored in the `/etc` directory?

Flash Cards

Question

What is / ?

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Answer

The Root directory. The absolute top-level folder of the entire computer.

Question

What is in /etc?

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Answer

System-wide configuration files (like network settings, passwords, and service configs). It is the control room of the OS.