CLI scripting basics in AWS - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the AWS CLI?

The AWS CLI is a tool that lets you control AWS services from the command line by typing simple commands.

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How do you list all S3 buckets using AWS CLI?

You run the command aws s3 ls to see all your S3 buckets.

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Why use scripting with AWS CLI?

Scripting helps automate repeated tasks, saving time and reducing mistakes by running commands automatically.

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What does the command aws ec2 describe-instances do?

It shows details about your EC2 virtual servers, like their status and configuration.

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How can you save the output of an AWS CLI command to a file?

Add > filename.txt at the end of the command to save the output to a file named filename.txt.

Which command lists all your AWS S3 buckets?

A aws s3 ls

B aws ec2 ls

C aws s3 list-buckets

D aws s3 show

The correct command to list S3 buckets is aws s3 ls.

What is the main benefit of scripting AWS CLI commands?

A Change AWS account settings

B Automate tasks to save time and avoid errors

C Prevent access to AWS services

D Make commands run slower

Scripting automates repeated tasks, making work faster and less error-prone.

How do you save the output of an AWS CLI command to a file?

A Use > filename.txt after the command

B Use save command

C Use aws save-output

D Use --output-file option

Adding > filename.txt saves the command output to that file.

Which AWS CLI command shows details about EC2 instances?

A aws ec2 list-instances

B aws s3 describe-instances

C aws ec2 describe-instances

D aws ec2 show-instances

The command aws ec2 describe-instances shows EC2 instance details.

What does AWS CLI stand for?

A Amazon Web Services Client Login

B Amazon Web Services Cloud Link Integration

C Amazon Web Services Cloud Language Interpreter

D Amazon Web Services Command Line Interface

AWS CLI means Amazon Web Services Command Line Interface.

Explain how you would automate listing all S3 buckets and saving the output to a file using AWS CLI scripting.

Think about combining commands and saving results.

Describe the purpose of AWS CLI and why it is useful for managing cloud resources.

Imagine telling a friend why typing commands can be better than clicking.