AWS CLI

Step 1: Make Sure you have installed AWS CLI and CLI Configured

Step 2: Now Create a bash file where we will write a script to see instances running in all regions

Step 3: Now edit the file (vi file_name) paste the following script into it and save the file ( :wq! )

# install aws cli first and configure it with credentials and default region
# the script will iterate over all regions of AWS
for region in `aws ec2 describe-regions --output text | cut -f4`
do
     echo -e "\nListing Instances in region:'$region'..."
     aws ec2 describe-instances --query "Reservations[*].Instances[*].{IP:PublicIpAddress,ID:InstanceId,Type:InstanceType,State:State.Name,Name:Tags[0].Value}" --output=table --region $region
done

Step 4: Now give the necessary permission to the file we created using chmod command and run the file

chmod +x file_name.sh
./file_name.sh

Step 5: After running the file we can see the output in table format in the output it will loop through all regions and give the describe of instances where they are running

EC2, or Elastic Compute Cloud, is a core service provided by Amazon Web Services (AWS) that is used to create virtual servers on the AWS cloud platform. The one that we create using the EC2 service is called an EC2 instance. We can use this EC2 instance to deploy and run a wide variety of applications, ranging from simple websites to complex enterprise applications.