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  • Book Overview & Buying Learn Docker - Fundamentals of Docker 19.x
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Learn Docker - Fundamentals of Docker 19.x

Learn Docker - Fundamentals of Docker 19.x - Second Edition

By : Dr. Gabriel N. Schenker
3.8 (6)
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Learn Docker - Fundamentals of Docker 19.x

Learn Docker - Fundamentals of Docker 19.x

3.8 (6)
By: Dr. Gabriel N. Schenker
Buy this Book

Overview of this book

Containers enable you to package an application with all the components it needs, such as libraries and other dependencies, and ship it as one package. Docker containers have revolutionized the software supply chain in both small and large enterprises. Starting with an introduction to Docker fundamentals and setting up an environment to work with it, you’ll delve into concepts such as Docker containers, Docker images, and Docker Compose. As you progress, the book will help you explore deployment, orchestration, networking, and security. Finally, you’ll get to grips with Docker functionalities on public clouds such as Amazon Web Services (AWS), Azure, and Google Cloud Platform (GCP), and learn about Docker Enterprise Edition features. Additionally, you’ll also discover the benefits of increased security with the use of containers. By the end of this Docker book, you’ll be able to build, ship, and run a containerized, highly distributed application on Docker Swarm or Kubernetes, running on-premises or in the cloud.
Table of Contents (25 chapters)
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Preface
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Preface
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Who this book is for
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What this book covers
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To get the most out of this book
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Get in touch
1
Section 1: Motivation and Getting Started
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Section 1: Motivation and Getting Started
Lock Free Chapter
2
What Are Containers and Why Should I Use Them?
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What Are Containers and Why Should I Use Them?
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What are containers?
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Why are containers important?
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What's the benefit for me or for my company?
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The Moby project
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Docker products
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Container architecture
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Summary
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Questions
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Further reading
3
Setting Up a Working Environment
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Setting Up a Working Environment
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Technical requirements
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The Linux command shell
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PowerShell for Windows
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Using a package manager
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Installing Git
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Choosing a code editor
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Installing Docker for Desktop
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Installing Docker Toolbox
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Installing Minikube
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Summary
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Questions
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Further reading
4
Section 2: Containerization, from Beginner to Black Belt
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Section 2: Containerization, from Beginner to Black Belt
5
Mastering Containers
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Mastering Containers
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Technical requirements
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Running the first container
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Starting, stopping, and removing containers
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Inspecting containers
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Exec into a running container
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Attaching to a running container
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Retrieving container logs
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Anatomy of containers
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Summary
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Questions
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Further reading
6
Creating and Managing Container Images
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Creating and Managing Container Images
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What are images?
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Creating images
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Lift and shift: Containerizing a legacy app
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Sharing or shipping images
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Summary
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Questions
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Further reading
7
Data Volumes and Configuration
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Data Volumes and Configuration
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Technical requirements
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Creating and mounting data volumes
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Sharing data between containers
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Using host volumes
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Defining volumes in images
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Configuring containers
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Summary
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Questions
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Further reading
8
Debugging Code Running in Containers
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Debugging Code Running in Containers
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Technical requirements
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Evolving and testing code running in a container
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Auto restarting code upon changes
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Line-by-line code debugging inside a container
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Instrumenting your code to produce meaningful logging information
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Using Jaeger to monitor and troubleshoot
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Summary
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Questions
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Further reading
9
Using Docker to Supercharge Automation
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Using Docker to Supercharge Automation
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Technical requirements
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Executing simple admin tasks in a container
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Using test containers
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Using Docker to power a CI/CD pipeline
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Summary
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Questions
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Further reading
10
Advanced Docker Usage Scenarios
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Advanced Docker Usage Scenarios
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Technical requirements
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All of the tips and tricks of a Docker pro
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Running your Terminal in a remote container and accessing it via HTTPS
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Running your development environment inside a container
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Running your code editor in a remote container and accessing it via HTTPS
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Summary
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Questions
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Further reading
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Section 3: Orchestration Fundamentals and Docker Swarm
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Section 3: Orchestration Fundamentals and Docker Swarm
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Distributed Application Architecture
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Distributed Application Architecture
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Understanding the distributed application architecture
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Patterns and best practices
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Running in production
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Summary
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Questions
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Further reading
13
Single-Host Networking
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Single-Host Networking
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Technical requirements
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Dissecting the container network model
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Network firewalling
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Working with the bridge network
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The host and null network
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Running in an existing network namespace
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Managing container ports
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HTTP-level routing using a reverse proxy
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Summary
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Questions
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Further reading
14
Docker Compose
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Docker Compose
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Technical requirements
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Demystifying declarative versus imperative
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Running a multi-service app
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Scaling a service
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Building and pushing an application
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Using Docker Compose overrides
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Summary
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Questions
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Further reading
15
Orchestrators
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Orchestrators
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What are orchestrators and why do we need them?
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The tasks of an orchestrator
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Overview of popular orchestrators
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Summary
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Questions
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Further reading
16
Introduction to Docker Swarm
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Introduction to Docker Swarm
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The Docker Swarm architecture
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Swarm nodes
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Stacks, services, and tasks
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Multi-host networking
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Creating a Docker Swarm
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Deploying a first application
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The swarm routing mesh
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Summary
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Questions
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Further reading
17
Zero-Downtime Deployments and Secrets
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Zero-Downtime Deployments and Secrets
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Technical requirements
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Zero-downtime deployment
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Storing configuration data in the swarm
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Protecting sensitive data with Docker secrets
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Summary
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Questions
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Further reading
18
Section 4: Docker, Kubernetes, and the Cloud
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Section 4: Docker, Kubernetes, and the Cloud
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Introduction to Kubernetes
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Introduction to Kubernetes
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Technical requirements
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Kubernetes architecture
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Kubernetes master nodes
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Cluster nodes
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Introduction to Minikube
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Kubernetes support in Docker for Desktop
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Introduction to pods
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Kubernetes ReplicaSet
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Kubernetes deployment
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Kubernetes service
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Context-based routing
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Comparing SwarmKit with Kubernetes
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Summary
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Questions
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Further reading
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Deploying, Updating, and Securing an Application with Kubernetes
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Deploying, Updating, and Securing an Application with Kubernetes
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Technical requirements
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Deploying a first application
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Defining liveness and readiness
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Zero downtime deployments
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Kubernetes secrets
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Summary
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Questions
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Further reading
21
Monitoring and Troubleshooting an App Running in Production
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Monitoring and Troubleshooting an App Running in Production
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Technical requirements
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Monitoring an individual service
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Using Prometheus to monitor a distributed application
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Troubleshooting a service running in production
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Summary
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Questions
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Further reading
22
Running a Containerized App in the Cloud
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Running a Containerized App in the Cloud
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Technical requirements
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Deploying and using Docker EE on AWS
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Exploring Microsoft's Azure Kubernetes Service (AKS)
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Understanding GKE
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Summary
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Questions
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Further reading
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Assessments
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Assessments
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Chapter 1
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Chapter 2
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Chapter 3
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Chapter 4
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Chapter 5
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Chapter 6
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Chapter 7 
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Chapter 8
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Chapter 9
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Chapter 10
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Chapter 11
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Chapter 12
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Chapter 13
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Chapter 14
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Chapter 15
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Chapter 16
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Chapter 17
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Chapter 18
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Other Books You May Enjoy
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Other Books You May Enjoy
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Installing and using a package manager

The easiest way to install software on a Linux, macOS, or Windows laptop is to use a good package manager. On macOS, most people use Homebrew, while on Windows, Chocolatey is a good choice. If you’re using a Debian-based Linux distribution such as Ubuntu, then the package manager of choice for most is apt, which is installed by default.

Installing Homebrew on macOS

Homebrew is the most popular package manager on macOS, and it is easy to use and very versatile. Installing Homebrew on macOS is simple; just follow the instructions at https://brew.sh/:

  1. In a nutshell, open a new Terminal window and execute the following command to install Homebrew:
    $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
  2. Once the installation has finished, test whether Homebrew is working by entering brew --version in the Terminal. You should see something like this:
    $ brew --versionHomebrew...
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