title: Downloading from S3 with aws-cli using filter on specific prefix
body: <p>For some reason there's a bucket with a bunch of different files, all of which have the same prefix but with different dates:</p>
  <blockquote>
  <p>backup.2017-01-01aa</p>
  <p>backup.2017-01-01ab</p>
  <p>backup.2017-01-15aa</p>
  <p>backup.2017-01-15ab</p>
  <p>backup.2017-02-01aa</p>
  <p>backup.2017-02-01ab</p>
  <p>etc..</p>
  </blockquote>
  <p>How do I download <strong>only</strong> files that start with &quot;backup.2017-01-01&quot;?</p>