How to debug a shell script invoked with "exec"?

Question

Suppose I've got a bash script foo.bash, which uses exec to run another bash script:

exec bar.bash

Now am debugging both foo.bash and bar.bash. I am running foo.bash with bash -x but it does not run bar.bash in debug mode. What should I do to run bar.bash in debug mode too ?

Answer 1

You can also export SHELLOPTS from foo.bash as well to export the shell options.

export SHELLOPTS