Confusing ls -l format

[MR ZenWiz]

On Wed, Aug 12, 2020 at 2:18 PM Peter Flynn <peter at silmaril.ie> wrote:
>
> On 12/08/2020 20:56, MR ZenWiz wrote:
> > In Ubuntu 20.04, when I do a long listing of, say, my home directory,
> > I see this in the listing:
> >
> > drwxr-xr-x  2 mrichter domain users   4096 Feb 11  2020 Documents
> >
> > All but one of the files and directories listed show "domain" between
> > user and group id.
> >
> > If I list with -o, both the "domain" and the group name disappear.
> >
> > What is that "domain" piece?
> >
> > AFAICT, it mainl prevents locate and find from working properly -
> > neither one can see the files in one of those domain directories.
> >
> > I tried to Google for this and Google doesn't seem to understand the questions.
> >
> > What does it mean and how can I find or locate around it?
>
> Can you show us the contents of the file /etc/group
>
There is a "users" group, nothing more.  See Ken's answer.

Thanks.

Mark