Thomas Denier wrote:

We have a 5.4.2.0 TSM server running under mainframe Linus. Our
daily housekeeping uses 'backup stgpool', 'migrate stgpool',
and 'reclaim stgpool' commands that start multiple processes.
The home-grown software that manages our housekeeping figures
out when each of these activities is done by examining data
piped from an administrative client session with the console
option. I am looking into the possibility of simplifying the
management software by using the 'wait=yes' option of the
various commands. How does this option behave with multiple
processes? In particular, does the command end when the last
of the multiple processes ends?

Yes.  If you specify wait=yes, then it will wait until the last process
finishes (or gets canceled).

--
Todd D. Taft
todd_taft AT unc DOT edu