Interactive notebook fails when no output is created

Run an interactive notebook then close it down without creating an output file. This should not be an error.

[IPKernelApp] WARNING | Unknown error in handling startup files:
[I 2023-06-24 16:37:49.660 ServerApp] Shutting down on /api/shutdown request.
[I 2023-06-24 16:37:49.660 ServerApp] Shutting down 1 kernel
[I 2023-06-24 16:37:50.172 ServerApp] Kernel shutdown: c96add56-bc3d-4edf-ba9c-ee7872babd83
cp: missing destination file operand after '/data/object_store_cache_rucio/0/0/c/dataset_00c4b47b-1519-4213-9369-ca25cdfd5be6.dat'
Try 'cp --help' for more information.