title: How can I echo version number in jenkins pipeline script
body: <p>My pipeline script is </p>
  
  <pre><code>VersionNumber([
      versionNumberString : '1.0.${BUILD_DAY}', 
      projectStartDate : '1990-07-01', 
      PrefixVariable : ''
      ])
  </code></pre>
  
  <p>Through jobs its creating an enviorment varibale . But through pipeline how can I echo version number string?</p>