I started looking at porting cloud-dev scripts to the new startup scripts after the discussion at SOLR-7240, but wasn't quite sure of what the behaviour should be, having never used them myself. Some of the scripts there have syntax errors, and I am not sure if some of the others are doing what was intended even on branch_5x where Jetty 8 is still used. I have a feeling many of them assume that the stock start.jar starts with a single "collection1" core because of how the solr home used to be set up before, which is no longer true.
So how do people use these scripts? Which scripts are used, and for what purpose?