Finding your AWS account ID via aws cli

Sometimes you need to use your account ID in scripts so the following allows you to find it automatically.

aws sts get-caller-identity --query "Account" --output text

You can use it in a script like this:

AWS_ACCOUNT_ID=$(aws sts get-caller-identity --query "Account" --output text)

See it in use in Pushing a docker image to AWS Elastic Container Registry (ECR).