export command not working in Jenkins groovy

Question

 export vara=$(grep '<Pattern>' $some_path/config/...../coreapplication_obips1/instanceconfig.xml | awk -F \> '{print $3}' | awk -F \< '{print $1}')

I am trying the above code in Jenkins pipeline using groovy script. It throws below error:

at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:310

How to execute shell script inside Jenkins groovy?

Answer 1

Refer the below to run shell and capture the output to a variable inside a Jenkins groovy file:-

vara = sh (script: 'shell script need to be executed', returnStdout: true)

You can try something like this:-

      steps {
         script {
                vara = sh (script: '''shell command''', returnStdout: true)
                echo " The value of variable id ${vara}"
                }
       }