title: How to login with AWS CLI using credentials profiles
body: <p>I want to setup multiple AWS profiles so that I can easily change settings and credentials when jumping between projects.</p>
  
  <p>I've read the AWS documentation but it's quite vague about how to select what profile you want to use when logging in.</p>
  
  <p>When I'm trying to login it's just giving me this error which seems to indicate that it's not picking up any credentials.</p>
  
  <p><code>An error occurred (UnrecognizedClientException) when calling the GetAuthorizationToken operation: The security token included in the request is invalid.</code></p>