On Thu, 27 Dec 2018 at 23:49, Richard Owlett <rowlett@cloud85.net> wrote:
>
> {I am the ONLY user on any of the machines.}
Have you checked?
The command
awk -F: '{print $1}' /etc/passwd
will display all the known users on your machine.
The commands 'ps aux' or top or htop
will show active users in the USER column.