aws-ec2:tldr:38558

The command "aws ec2 describe-instances --instance-ids ${instance_id}" is an AWS Command Line Interface (CLI) command used to retrieve information about EC2 instances.

Here's a breakdown of each component:

• "aws ec2 describe-instances" is the main command used to retrieve information about EC2 instances.
• "--instance-ids" is an option flag used to specify that the command should retrieve information for specific instance IDs. Instance IDs uniquely identify each EC2 instance.
• "${instance_id}" is a placeholder variable that should be replaced with the actual EC2 instance ID you want to retrieve information for. The dollar sign and curly braces indicate that it is a variable.

By running this command and replacing "${instance_id}" with the desired instance ID, you can get detailed information about that specific EC2 instance, such as its status, instance type, IP addresses, security groups, and more.