title: how to return items in a dynamodb on aws-cli
body: <p>So, I have a DynamoDB table <code>Users</code> and I want to return all the contents of this table. Or maybe even some. </p>
  
  <p>I tried</p>
  
  <pre><code>aws dynamodb query --table-name Users 
  </code></pre>
  
  <p>and it says I have to specify <code>key-condition</code> or <code>key-condition-expression</code>, so I added the following:</p>
  
  <pre><code>aws dynamodb query --table-name Users --key-condition-expression Username = "test"
  </code></pre>
  
  <p>and it returns an error message <code>" Unknown options: test "</code>.</p>