proper way to detect shell exit code when errexit option set

Question

I prefer to write solid shell code, so the errexit & nounset is alway set.

The following code will stop at bad_command line

#!/bin/b         


        

Answer 1

The accepted answer is good, but I think it could be refactored to be even better; more generic, easier to refactor and read:

some_command_status=$(some_command && echo $? || echo $?)

vs.

some_command && some_command_status=$? || some_command_status=$?