# #Day43:-S3 Programmatic access with AWS-CLI 💻 📁

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### S3

Amazon Simple Storage Service (Amazon S3) is an object storage service that provides a secure and scalable way to store and access data on the cloud. It is designed for storing any kind of data, such as text files, images, videos, backups, and more.

### Task-01

**Launch an EC2 instance using the AWS Management Console and connect to it using Secure Shell (SSH).**

* Open the Amazon Management Console and sign in.
    
* Use the console to access the EC2 service and start an instance.
    

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* Connect to the EC2 instance using SSH.
    

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**Use the AWS Management Console to create an S3 bucket and add a file to it.**

* Go to the S3 service in your Amazon Management Console after logging in.
    
* Choose "Create bucket" from the menu.
    

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* Click "Create" after giving your bucket a distinct name and choosing the region you want it to be created in.
    

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* Click on 'Create Bucket'
    

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* To upload a file, click the "Upload" button.
    

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* Choose the file you wish to upload by clicking the "Add files" button in the "Upload" window.
    

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* Click "Next" after selecting your file.
    

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* You may see the file in your S3 bucket once the upload is finished.
    

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**Use the AWS Command Line Interface to access the file from the EC2 instance (AWS CLI).**

* Activate the AWS CLI.
    

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* Check aws-cli installed or not using checking aws version
    

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* After setting up the Amazon CLI, configure your account credentials by launching a terminal and using the command aws configure.
    
* Type in your Secret Access Key and AWS Access Key ID.
    

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* List s3 buckets using the below command:
    

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* To copy the file from your S3 bucket to your EC2 instance, use the aws s3 cp command.
    

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## Task-02

**Create a snapshot of the EC2 instance and use it to launch a new EC2 instance.**

The EC2 instance that you wish to take a snapshot of should be selected.

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* a snapshot was taken.
    

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Launch a new EC2 instance using a snapshot.

Generate an image from the snapshot by clicking Actions on the right side of the screen.

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Give the image a name and a description in the "Create Image from Snapshot" dialogue.

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Click on "Create an image."

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Visit the "AMIs" section of the EC2 Dashboard after the image has been produced.

check image is created.

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Right-click on the freshly built AMI to select "Start Instance."

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Choose the configuration choices for the new instance in the "Launch Instance" window.

Choose the VPC and subnet where you want the new instance to start.

You can change the storage volumes in the "Add Storage" section to suit your needs.

After looking over the instance's specifications, click "Launch instance" to start a fresh instance.

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Connect to the instance using SSH:

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here login as the user "ubuntu" rather than the user "root"

Download a file from the S3 bucket using the AWS CLI.

aws s3 cp command to download the file from your S3 bucket to your EC2 instance.

```apache
aws s3 cp s3://BUCKET_NAME/PATH/TO/FILE /PATH/TO/LOCAL/FILE
```

### AWS CLI commands for S3:

Here are some commonly used AWS CLI commands for Amazon S3:

**aws s3 ls** \- This command lists all of the S3 buckets in your AWS account.

**aws s3 mb s3://bucket-name** - This command creates a new S3 bucket with the specified name.

**aws s3 rb s3://bucket-name** - This command deletes the specified S3 bucket.

**aws s3 cp file.txt s3://bucket-name** - This command uploads a file to an S3bucket.

**aws s3 cp s3://bucket-name/file.txt .** - This command downloads a file from an S3 bucket to your local file system.

**aws s3 sync local-folder s3://bucket-name** - This command syncs the contents of a local folder with an S3 bucket.

**aws s3 ls s3://bucket-name** \- This command lists the objects in an S3 bucket.

**aws s3 rm s3://bucket-name/file.txt -** This command deletes an object from an S3 bucket.

**aws s3 presign s3://bucket-name/file.txt** \- This command generates a pre-signed URL for an S3 object, which can be used to grant temporary access to the object.

**aws s3api list-buckets** \- This command retrieves a list of all S3 buckets in your AWS account, using the S3 API.