Re: automatic unsetting of inherit_errexit with function calls

[Lawrence Velázquez]

On Tue, Aug 22, 2023, at 11:09 AM, crstml@libero.it wrote:
> Let's assume the following script named test-subst-and-error.sh:
>
>   1  func()
>   2  {
>   3      echo "entering func"
>   4      : $-
>   5      bash -c "echo XXXXXXXX; exit 8"
>   6      echo "exiting func"
>   7  }
>   8
>   9   OUTPUT=$(cat non-existing-file.txt)
> 10   # OUTPUT=$(func)
> 11
> 12   echo "OUTPUT: '${OUTPUT}'"
>
> [...]
>
> My only question is: why in the case 1 when external program
> is called errexit is not not automatically disabled but it is
> disabled when a function is called?

set -e is disabled within both command substitutions.  The difference
is that the exit status of the assignment on line 9 is nonzero,
causing early exit, while that of the assignment on line 10 is zero
(unless the "echo" command on line 6 fails for some reason).

-- 
vq