Retrieve all properties of env in Jenkinsfile

Question

I would like to print all available properties (and their values) in env object inside Jenkinsfile.

When I do

print env

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Answer 1

As said over here: https://stackoverflow.com/a/42138466/618253

The declarative pipeline way of doing things:

node {
   echo sh(returnStdout: true, script: 'env')
}