title: Change user's command prompt color based on AWS "--profile"
body: <p>The new unified AWS CLI gives us the ability to pass in a "--profile" to switch between accounts. Very cool feature, but I see this getting us in a lot of trouble (if, for example a user forgets they are in PROD rather than DEV and run commands that whack stuff out).</p>
  
  <p>I don't see any way to hook the "--profile" into something like a ".bashrc" script where we could do things like changing the prompt color (to like red) &amp; adding "PRODUCTION" to the prompt.</p>
  
  <p>The only way I could imagine doing this is writing a wrapper bash script named something like "gotoprod.sh" which changes prompt &amp; sets up the "--profile". Anything more elegant in the aws cli tools themselves?</p>