Re: automatic unsetting of inherit_errexit with function calls

[crstml]

Thank you Lawrence for your reply.

In fact I've realized that -e is disabled also in the line 9 immediately
after I've sent the email.

Cristian

Lawrence Velázquez wrote:
> 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).