Replacement for Jenkins Scriptler plugin? -Webscriptler
It looks like the Jenkins Scriptler plugin is no longer available, due to security reasons: https://wiki.jenkins-ci.org/display/JENKINS/Scriptler+Plugin
"Distribution of This Plugin Has Been Suspended"
Is there a similar plugin that I could use to run saved Groovy scripts?
For this question, you can store your groovy scripts in Managed Files and pass the parameters to the groovy web scriptler through Extended Choice Parameters Plugin.
Or else you can download the Scriptler plugin source code and add it to your /var/lib/jenkins/plugin folder and start Jenkins server. It will work fine.