AWS CLI S3 List Buckets

Introduction

As a programmer, you might need to manage your S3 buckets programmatically. AWS CLI provides a command s3 list-buckets which can be used to list all the available buckets in your account. This command can be executed using Shell-Bash.

Prerequisites

In order to use the aws cli s3 list-buckets command, you need to have AWS CLI installed on your machine. You can download and install AWS CLI by following the instructions given in the official documentation.

Syntax

The basic syntax of aws cli s3 list-buckets command is as follows:

aws s3 list-buckets [options]

Here, options are the various command-line options that can be used with the list-buckets command.

Usage

To list all the available S3 buckets in your account, you can use the following command:

aws s3 list-buckets

This command will return a response similar to the following:

{
    "Buckets": [
        {
            "Name": "bucket1",
            "CreationDate": "2022-08-08T10:00:00.000Z"
        },
        {
            "Name": "bucket2",
            "CreationDate": "2022-08-08T10:01:00.000Z"
        }
    ]
}

where Name refers to the name of the bucket and CreationDate refers to the date and time of its creation.

You can also use various command-line options with the list-buckets command to filter the results based on certain criteria. Some of the commonly used options are:

• --profile: This option can be used to specify the profile to be used while executing the command. For example, if you have multiple AWS profiles configured on your machine, you can use this option to choose a specific profile.
• --region: This option can be used to specify the AWS region in which the command should be executed.
• --output: This option can be used to specify the format in which the response should be displayed. By default, the response is displayed in JSON format. However, you can use this option to display the response in other formats such as text or table.

Conclusion

In this article, we learned how to use the aws cli s3 list-buckets command to list all the available S3 buckets in your AWS account using Shell-Bash. We also explored some of the commonly used command-line options for this command.