title: AWS SNS how to add line breaks in message
body: <p>I'm trying to send SNS messages via CLI in json format. </p>
  
  <pre><code>aws sns publish --cli-input-json "{\"TopicArn\":\"xxx\",\"Message\":\"first line\n second line\",\"Subject\":\"Empty subject\"}"
  </code></pre>
  
  <p>But the \n doesn't work. Neither is "\r\n" or "\n". I think the string is escaped by SNS so \n doesn't work. Does anyone know how to send a message of 2 lines?(Sending 2 messages is not an option) Appreciate your advice!</p>