I tend to use C++ sometimes along with HTCondor to run lots of jobs on many CPUs. My jobs are currently writing to data files without using the temporary /tmp directory on the Condor CPUs. I wonder if anyone knows what must be included in the C++ script to write data files on the /tmp using HTCondor. After the completion of each script I would also like to transfer these written files to a storage disk. Can someone offer a general outline?