Confusion about rake assets:clean / cleanup on the asset pipeline in rails

Question

Could somebody explain to me what the command rake assets:clean really does? Unfortunately the Rails Guides dont mention it. There is also the command rak

Answer 1

rake assets:clean removes compiled assets. It is run by cap deploy:assets:clean to remove compiled assets, generally from a remote server.

cap deploy:clean removes old releases, generally from a remote server. It is not rake assets:clean

rake != cap