title: Create file with content if doesn't exist
body: <p>I'm looking for a way to create a file with specific content if it does not exist.</p>
  
  <p>This command will overwrite the files contents.</p>
  
  <pre><code>echo "{}" &gt; test.json
  </code></pre>
  
  <p>I'm looking for a way to write an empty json file without overwriting the contents.</p>