Script Runner Regex to find an email address in a description and copy to a custom field

[Lenny Emmerton]

Hello, I need a script that searches for an email address in my description field and then copies this address to a custom field.

[Alexey Matveev]

Hello,

Here is how you can find a email address in the Groovy language:

https://compoundthinking.wordpress.com/2012/06/04/how-to-validate-email-address-with-regular-expression-in-groovy/

After you received the address you can save it in a custom field like this:

https://community.atlassian.com/t5/Jira-questions/Updating-a-custom-field-using-groovy-script-runner/qaq-p/256708

Look at the Jamie Echlin answer.