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How to set variables in a multi-line shell script within Jenkins Groovy?

Suppose I have a Groovy script in Jenkins that contains a multi-line shell script. How can I set and use a variable within that script? The normal way produces an error:

sh """
    foo='bar'
    echo $foo
"""

Caught: groovy.lang.MissingPropertyException: No such property: foo for class: groovy.lang.Binding

Solution

  • You need to change to triple single quotes ''' or escape the dollar \$

    Then you'll skip the groovy templating which is what's giving you this issue