One of the containers I'm trying to build has a component that
requires restarting the current she'll to continue. I've seen other
suggestions via Google but haven't had any success. Would be grateful
if any one could comment.
How exactly do you need to restart the shell? If you need to reload
just the settings then you could use: "source conf-file-to-reload".
If you really need to re-exec the program, you could use "exec $SHELL
after-reload.sh" from the shell itself.