bundletool-validate:tldr:a7029

The command bundletool validate --bundle=${path-to-bundle-aab} is used to validate an Android App Bundle (AAB) file using the bundletool command-line tool.

Here's a breakdown of the command:

1. bundletool is the command-line tool used for working with Android App Bundles. It is a part of the Android Studio suite of tools.

2. validate is a command supported by bundletool that checks whether the given Android App Bundle is valid or not. It ensures that the bundle is correctly structured and follows the required specifications.

3. --bundle=${path-to-bundle-aab} is an option provided to specify the path to the AAB file you want to validate. It uses the ${...} syntax to refer to the value of the environment variable named path-to-bundle-aab. You need to replace ${path-to-bundle-aab} with the actual path to the AAB file on your system. Note that you can also provide the direct path to the AAB file without using environment variables.

Once you run this command, bundletool will check the given Android App Bundle file for any structural or specification issues. It helps you ensure the integrity and correctness of your bundle before further processing, such as deploying or publishing the app.