Lesson 6: The App Store of Linux (Package Management)

In DevOps, you'll constantly need to install new software—web servers, databases, or monitoring tools. In Ubuntu/Debian, we use a tool called apt.

Why not just download an .exe?

Linux uses Repositories. Think of it like a secure, verified App Store for servers. You don't "find" software on random websites; you ask the system to fetch it for you.

Key Commands

• apt update: Refreshes the list of available software.
• apt install: Downloads and installs a tool.
• apt remove: Uninstalls a tool.

Mission Objective

Your team wants a fun way to display server status. Install the cowsay utility.

1. First, run apt-get update to refresh your list.
2. Then, install the tool: apt-get install -y cowsay.
3. Once done, try running it: /usr/games/cowsay "I am a DevOps pro!"

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