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The Ultimate Ubuntu Handbook

You're reading from   The Ultimate Ubuntu Handbook A complete guide to Ubuntu 24.04, from installation to advanced security and development

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Product type Paperback
Published in Aug 2025
Publisher Packt
ISBN-13 9781835465202
Length 356 pages
Edition 1st Edition
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Author (1):
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Ken VanDine Ken VanDine
Author Profile Icon Ken VanDine
Ken VanDine
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Toc

Table of Contents (26) Chapters Close

Preface 1. Part 1: Getting to Know Ubuntu
2. Introduction to Ubuntu FREE CHAPTER 3. What’s New in Ubuntu 24.04? 4. Security and Transparency – The Advantages of Open Source Software 5. Getting Started with Ubuntu: A User’s Guide 6. Part 2: Getting the Most Out of Your Ubuntu System
7. Using Your Ubuntu Desktop 8. Software Discovery: Finding and Installing Applications 9. Software Updates: Enhancing Security and Stability 10. Getting Help: The Ubuntu Community and Beyond 11. Ubuntu in the Enterprise and at Scale 12. Command-Line Tricks and Shortcuts: Boosting Your Efficiency 13. Part 3: Security and Privacy
14. Introduction to Network Security 15. Understanding Firewalls 16. Safeguarding Information with Data Encryption 17. Part 4: Ubuntu, the Ultimate Development Platform
18. Ubuntu for Developers 19. Leveraging Containers for Development 20. Cloud-Style VMs on Your Desktop 21. Kubernetes Development on Your Desktop 22. Building Your Data Science Toolkit 23. Embracing the Spirit of Ubuntu 24. Other Books You May Enjoy
25. Index

The power of the command line: installing software with APT and Snap

The App Center provides a great, intuitive interface for finding and installing applications. Let’s explore how we can do that with our trusty command line.

For Debian packages, APT is the tool for finding and installing software from the Ubuntu software repositories. It’s important to understand that APT relies on a local package cache for searches and dependency resolution. What does that mean? Well, APT downloads data from all configured software repositories to use later when searching, installing, or upgrading packages. This package cache includes a list of all software available in the repositories, including information such as version, description, dependencies, and much more.

Let’s take a look at some common ways you may use APT with the command line.

apt show

The apt show command displays information in the package cache. The following example shows the information included...

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