List public IP addresses of EC2 instances

Question

I want to list the public IP addresses of my EC2 instances using Bash, separated by a delimiter (space or a new-line).

I tried to pipe the output to jq with aw

Answer 1

You can use instance metadata so you can run the following command from the ec2 instance:

curl http://169.254.169.254/latest/meta-data/public-ipv4

and it will give you the public IP of the instance. If you want the private IP, you will run

curl http://169.254.169.254/latest/meta-data/local-ipv4