Hi @Chenghao Yang ,
In addition to what @Samy Abdul has mentioned, whenever we submit a job, the node to which it is submitted creates a working directory and keeps the related files over there for the execution of batch script..
Coming back to your question on mentioning 0 days what happens - the files get deleted on the same day of the process execution. It is not retained by the node.
Please let us know if that answers your question.
Thanks