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

Question

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

See: https://stackoverflow.com/a/43452729/131157 – Babak May 13 '18 at 05:39 — Babak, May 13 '18 at 05:39

score 98 · Accepted Answer · answered Jan 27 '16 at 20:38

98

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

answered Jan 27 '16 at 20:38

tim_yates

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Could be useful - https://gist.github.com/Faheetah/e11bd0315c34ed32e681616e41279ef4 – ALex_hha Jul 01 '19 at 09:28

bpedroso · Answer 2 · 2017-11-21T01:19:24.207

17

I'm just putting a '\' on the end of line

sh script: """\
  foo='bar' \
  echo $foo \
""", returnStdout: true

This statement works on my script.

edited Nov 21 '17 at 01:19

answered Feb 17 '17 at 13:47

bpedroso

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

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