title: How to break a single command inside a `script` step on multiple lines
body: <p>We have a project using Azure Pipeline, relying on <code>azure-pipelines.yml</code> file at the repo's root.</p>
  
  <p>When implementing a <code>script</code> step, it is possible to execute successive commands in the same step simply writing them on different lines:</p>
  
  <pre><code>- script: |
    ls -la
    pwd
    echo $VALUE
  </code></pre>
  
  <p>Yet, if we have a single command that is very long, we would like to be able to break it on several lines in the YAML file, but cannot find the corresponding syntax?</p>