title: Reference global credentials in Bash script in Jenkins job
body: <p>I created global credentials (username,password) and gave a custom ID. How do I reference this ID in my Bash script? I checked "inject global password" in my job configuration already.</p>
  
  <p>I tried <a href="https://stackoverflow.com/questions/27152656/jenkins-access-global-passwords-in-powershell">Jenkins: Access global passwords in powershell</a> but doesn't work.</p>
  
  <p>Assume the ID of the global credentials is "USER_PASSWORD", my bash script tried:</p>
  
  <pre><code>echo ${USER_PASSWORD}
  echo ${env:USER_PASSWORD}
  </code></pre>
  
  <p>Doesn't work. I read some online post I would need to query Jenkins API to get the credentials. That doesn't sound right.</p>