I am using parallel-20190922-1 from epel and when I run a job in cron such as /usr/bin/parallel /usr/bin/bash ::: a.sh b.sh c.sh I don't receive any mail regardless of all three scripts generating output.

All other jobs in cron generate mail if they write to stdout or stderr. When the above is run at a terminal, I get the output from all three jobs grouped in the order they complete.

I can't find any documentation for parallel that states the behavior when not running with a terminal.

Anyone have any ideas?

Thanks, jlc