how can I know whether the plugin is used by any jobs in jenkins

Question

Jenkins had 600+ plugins, in the real system, we are used to install lots of plugins.

And sometimes, we want to remove some plugins to make system more clean or replace

Answer 1

I wrote this parameterized Jenkins job that searches config files. You only need to know what tags the plugin generates in the config file and to use that tag's name as parameter needle:

cd  $JENKINS_HOME
cd jobs
echo searching for $needle
find . -name config.xml -type f -exec grep $needle /dev/null {} \;