How to use docker scout version command to check version information

Introduction

In this lab, you will learn how to use the docker scout version command to check the installed version of the Docker Scout CLI. You will understand the purpose of this command, execute it in the terminal, and interpret its output to confirm that Docker Scout is installed and functioning correctly in your environment. This is a fundamental step for verifying your Docker Scout setup.

Skills Graph

%%%%{init: {'theme':'neutral'}}%%%% flowchart RL docker(("Docker")) -.-> docker/SystemManagementGroup(["System Management"]) docker/SystemManagementGroup -.-> docker/version("Show Docker Version") subgraph Lab Skills docker/version -.-> lab-555217{{"How to use docker scout version command to check version information"}} end

Understand the purpose of the docker scout version command

In this step, you will learn the purpose of the docker scout version command and how to use it to check the version of the Docker Scout CLI.

Docker Scout is a tool that helps you understand the security posture of your container images. It provides insights into vulnerabilities, licenses, and other information about the image layers. The docker scout version command is a simple utility to display the installed version of the Docker Scout CLI. This is useful for verifying that Docker Scout is installed correctly and for troubleshooting version-related issues.

To check the version of Docker Scout, you will use the docker scout version command in the terminal.

docker scout version

After executing the command, you will see output similar to the following, which indicates the version of the Docker Scout CLI installed on your system:

Docker Scout version vX.Y.Z

The output shows the version number of the Docker Scout CLI. This confirms that Docker Scout is installed and ready to use.

Execute the docker scout version command

In this step, you will execute the docker scout version command in the terminal to see its output. This is a straightforward command that simply prints the version of the Docker Scout CLI.

Open your terminal if it's not already open. You are likely in the ~/project directory by default.

Now, type the following command and press Enter:

docker scout version

You should see output similar to this:

Docker Scout version vX.Y.Z

The exact version number (vX.Y.Z) might vary depending on the installed version. This output confirms that the docker scout command is recognized and executed, and it provides the version information. This is a fundamental step to ensure that the Docker Scout tool is accessible and functioning correctly in your environment.

Interpret the output of the docker scout version command

In this step, you will learn how to interpret the output of the docker scout version command. As you saw in the previous step, executing docker scout version produces output similar to Docker Scout version vX.Y.Z.

Let's break down this output:

Docker Scout version: This is a static string that identifies the tool whose version is being displayed.
vX.Y.Z: This part represents the actual version number of the Docker Scout CLI.
- v: This prefix indicates that it is a version number.
- X: This is the major version number. Changes to the major version usually indicate significant updates or potentially breaking changes.
- Y: This is the minor version number. Minor version increments typically include new features and improvements while maintaining backward compatibility within the same major version.
- Z: This is the patch version number. Patch versions are usually reserved for bug fixes and security patches.

Understanding the version number is important for several reasons:

Compatibility: Different versions of Docker Scout might have different features or require specific versions of Docker Engine. Knowing your version helps ensure compatibility.
Troubleshooting: If you encounter issues, providing the version number is often the first step in getting help from the community or support.
Updates: You can compare your current version to the latest available version to determine if you need to update to get new features or bug fixes.

For example, if the output is Docker Scout version v1.0.0, it means you are using the first major release of Docker Scout. If it's v1.1.2, you are using a minor update (1.1) with a patch (2).

The output of docker scout version is concise and provides the essential information about the installed Docker Scout CLI version.

Summary

In this lab, you learned the purpose of the docker scout version command, which is used to check the installed version of the Docker Scout CLI. You executed the docker scout version command in the terminal and observed its output, which displays the version number of the Docker Scout CLI. This process confirms that Docker Scout is installed and accessible in your environment, a crucial step for verifying its readiness for use.