AWS Cheat Sheet: Essential Commands for AWS Services

Introduction

In today’s rapidly evolving technology landscape, Amazon Web Services (AWS) has emerged as a pivotal player, offering a vast array of cloud computing services that cater to diverse needs. This guide provides a succinct overview of some of the most crucial AWS services, serving as a quick reference for developers and IT professionals.

What is AWS?

Amazon Web Services is a comprehensive cloud computing platform provided by Amazon. It offers a wide range of services including computing power, database storage, and content delivery, among others. AWS is renowned for its flexibility, scalability, and cost-effectiveness, making it a go-to choice for businesses of all sizes.
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1. EC2 (Elastic Compute Cloud)
   • Start an instance: aws ec2 start-instances --instance-ids i-1234567890abcdef0
   • Stop an instance: aws ec2 stop-instances --instance-ids i-1234567890abcdef0
   • Terminate an instance: aws ec2 terminate-instances --instance-ids i-1234567890abcdef0
2. S3 (Simple Storage Service)
   • Create a bucket: aws s3 mb s3://my-bucket
   • List buckets: aws s3 ls
   • Upload a file: aws s3 cp my-file.txt s3://my-bucket
   • Download a file: aws s3 cp s3://my-bucket/my-file.txt ./
3. IAM (Identity and Access Management)
   • List users: aws iam list-users
   • Create a user: aws iam create-user --user-name my-new-user
   • Attach a policy to a user: aws iam attach-user-policy --policy-arn arn:aws:iam::aws:policy/AdministratorAccess --user-name my-new-user
4. RDS (Relational Database Service)
   • Create a database: aws rds create-db-instance --db-instance-identifier mydbinstance --allocated-storage 20 --db-instance-class db.m1.small --engine mysql --master-username masteraws --master-user-password masterpassword
   • List databases: aws rds describe-db-instances
   • Delete a database: aws rds delete-db-instance --db-instance-identifier mydbinstance
5. Lambda
   • Create a function: aws lambda create-function --function-name my-function --zip-file fileb://function.zip --handler index.handler --runtime nodejs12.x --role arn:aws:iam::123456789012:role/lambda-role
   • Invoke a function: aws lambda invoke --function-name my-function outputfile.txt
   • List functions: aws lambda list-functions
6. CloudFormation
   • Create a stack: aws cloudformation create-stack --stack-name my-stack --template-body file://mytemplate.json
   • Describe stacks: aws cloudformation describe-stacks
   • Delete a stack: aws cloudformation delete-stack --stack-name my-stack
7. DynamoDB
   • Create a table: aws dynamodb create-table --table-name my-table --attribute-definitions AttributeName=id,AttributeType=S --key-schema AttributeName=id,KeyType=HASH --provisioned-throughput ReadCapacityUnits=1,WriteCapacityUnits=1
   • List tables: aws dynamodb list-tables
   • Delete a table: aws dynamodb delete-table --table-name my-table

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Conclusion

This cheat sheet encapsulates the essence of some of the most commonly used services in AWS. Whether you’re managing cloud infrastructure, handling databases, or deploying applications, these commands offer a quick way to navigate the complexities of AWS. Embracing these tools can significantly enhance efficiency and productivity in cloud computing endeavors.