How to check what files have been customised in /etc?

[David Fletcher]

On Sun, 2020-12-13 at 09:58 +0000, Chris Green wrote:
> I try as far as possible to keep my system 'standard' with as much as
> possible of the custmisation being in /home where I use mercurial to
> keep track of changes (and which is preserved when OS is upgraded).
> 
> However there are inevitably a few global customisations in /etc and
> I'd like to track them as well if possible.  I can configure ways to
> track them now but can anyone suggest a way to find all the changes I
> have done over the years in /etc?  I don't think there are all that
> many of them but I know there are some and there are likely to be
> some
> I can't remember how I did.

I always comment my changes with reason, initials and date. Then a
search for my initials turns them up.

Dave