The AWS Command Line Interface (CLI) is a unified tool that allows you to interact with various AWS services using command-line commands.
The AWS CLI provides a convenient way to automate tasks, manage AWS resources, and interact with services directly from the command line, making it useful for scripting and administration.
You can install the AWS CLI on various operating systems using package managers or by downloading the installer from the AWS website.
AWS CLI profiles allow you to manage multiple sets of AWS security credentials, making it easier to switch between different accounts and roles.
You can configure the AWS CLI by running the aws configure command, where you provide your access key, secret key, default region, and output format.
6. What is the difference between IAM user-based credentials and IAM role-based credentials in the AWS CLI?
IAM user-based credentials are long-term access keys associated with an IAM user, while IAM role-based credentials are temporary credentials obtained by assuming a role using the sts assume-role command.
You can interact with AWS services by using AWS CLI commands specific to each service. For example, you can use aws ec2 describe-instances to list EC2 instances.
The basic syntax for AWS CLI commands is aws <service-name> <operation> [options], where you replace <service-name> with the service you want to interact with and <operation> with the desired action.
You can run aws help to see a list of AWS services and the corresponding commands available in the AWS CLI.
Output formatting options allow you to specify how the results of AWS CLI commands are presented. Common options include JSON, text, table, and YAML formats.
You can use filters like --query to extract specific data from AWS CLI command output, and you can use --output to choose the format of the output.
You can create and manage AWS resources using commands such as aws ec2 create-instance for EC2 instances or aws s3 cp to copy files to Amazon S3 buckets.
Some AWS CLI commands return paginated results. You can use the --max-items and --page-size options to control the number of items displayed per page.
The AWS SSO feature in the AWS CLI allows you to authenticate and obtain temporary credentials using an AWS SSO profile, simplifying the management of credentials.
Yes, you can use the AWS CLI to create, update, and delete CloudFormation stacks using the aws cloudformation commands.
You can use the --debug option with AWS CLI commands to get detailed debug information, which can help troubleshoot issues.
Yes, AWS Lambda functions can use the AWS CLI by packaging it with the function code and executing CLI commands from within the function.
You can secure the AWS CLI on your local machine by using IAM roles, IAM user-based credentials, and the AWS CLI's built-in encryption mechanisms for configuration files.
You can update the AWS CLI to the latest version using package managers like pip (Python package manager) or by downloading the installer from the AWS website.
To uninstall the AWS CLI, you can use the package manager or the uninstaller provided by the installer you used to install it initially.