How to check if dtar succesfully finished?

[yr-wang-hit]

We have a data management pipeline to first tar the data and then archive it.
I need to check that the data is correct (not corrupted during tar process) before
archive. And All the data management pipeline is executed through script (
submit dtar job to slurm(pbs) and archive). I need some way to automatically
detect if dtar has success.

The doc says:

One cannot easily check the return codes of tools. Instead, inspect stdout and stderr output for errors.

maybe I need to use regular expression to match the ouput of dtar?(maybe slurm.out or something)?
Thanks