I've lost sudo access and I don't really understand why

[Chris Green]

On Thu, Mar 19, 2020 at 12:26:03AM +0100, Tom H wrote:
> On Wed, Mar 18, 2020 at 11:19 PM Karl Auer <kauer at biplane.com.au> wrote:
> > On Wed, 2020-03-18 at 21:28 +0000, Chris Green wrote:
> >>
> >> So (unless using the -a option) usermod removes group membership that
> >> isn't specifically stated.  Surely there's an easier way to add
> >> oneself to an extra group.
> >
> > Personally I almost always modify /etc/groups directly (i.e., with a
> > text editor) unless the operation is scripted. It has never failed me
> > in well over 30 years of Unixing.
> 
> I hope that you use "vigr" (and "vipw" for "/etc/passwd").
> 
Only necessary on a multi-user system to prevent simultaneous edits of
the files, if there's just me/you then a straight edit is fine.

-- 
Chris Green