[JENKINS-56925] extra newline character from powershell output

When i trying to wrap some powershell script output into variable, it's adds excess \n symbol to.

Like:

script {

	VARI = powershell (returnStdout: true, script: """Write-Output foo""")

	println VARI

	}

It's outputs the following:

[Pipeline] script

[Pipeline] {

[Pipeline] powershell

[Pipeline] echo

foo


[Pipeline] }

[Pipeline] // script

[Pipeline] }

But powershell itself transmits output without `n .

How to escape it in output?

---
Originally reported by gek, imported from: extra newline character from powershell output

• assignee: gek
  
• status: Open
  
• priority: Trivial
  
• component(s): durable-task-plugin
  
• label(s): jenkins,pipeline,powershell
  
• resolution: Unresolved
  
• votes: 1
  
• watchers: 3
  
• imported: 2025-12-09
  

Raw content of original issue

When i trying to wrap some powershell script output into variable, it's adds excess \n symbol to.


Like:



script {

	VARI = powershell (returnStdout: true, script: """Write-Output foo""")

	println VARI

	}





It's outputs the following:



[Pipeline] script

[Pipeline] {

[Pipeline] powershell

[Pipeline] echo

foo


[Pipeline] }

[Pipeline] // script

[Pipeline] }





But powershell itself transmits output without `n .

 How to escape it in output?

environment

```
Jenkins ver. 2.164.1

Durable Task Plugin 1.29
```