title: Using aws cli, what is best way to determine the current region
body: <p>Interactively, I can use "aws configure" to change or see the default region. Is there a "pwd" like function, documented or not that allows me to determine or confirm the current region mid-script ? Even if AWS_DEFAULT_REGION is not defined ? I want a script to run under a number of profiles. I can scrape from aws configure list, but is there something neater ?</p>