How to get back into an EC2 instance, if you lost the original SSH key.
If you ever need to get back into an EC2 instance, for which you can’t find the private key, I found the following command very helpful. In order for this to...
aws
Using more than one account at AWS while using aws-cli
How to switch between Amazon accounts while using the aws cli
AWS CLI Quick Reference
A cheatsheet/quick-reference on how to use the AWS CLI”