title: Copy multiple files from s3 bucket
body: <p>I am having trouble downloading multiple files from AWS S3 buckets to my local machine. </p>
  
  <p>I have all the filenames that I want to download and I do not want others. How can I do that ? Is there any kind of loop in aws-cli I can do some iteration ?</p>
  
  <p>There are couple hundreds files I need to download so that it seems not possible to use one single command that takes all filenames as arguments. </p>