cat plugins

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The plugins command provides a view per node of running plugins. This information spans nodes.

% curl 'localhost:9200/_cat/plugins?v'
name    component       version        description
I8hydUG discovery-gce   5.0.0          The Google Compute Engine (GCE) Discovery plugin allows to use GCE API for the unicast discovery mechanism.
I8hydUG lang-javascript 5.0.0          The JavaScript language plugin allows to have javascript as the language of scripts to execute.

We can tell quickly how many plugins per node we have and which versions.