Problem with uninstall instructions

[Dave Horsfall]

On Wed, 26 Feb 2020, kkh2 at cornell.edu wrote:

[...]

>       $ dscl -p . -delete /Users/macports

Just a quick side-track: is there a pointer somewhere to these obscure 
commands?  It seems that I come across a new one with each new thread on 
this list...

[...]

> I am using macOS 10.13.6 (my hardware allows no higher version, and my
> finances allow no higher hardware).

Me too, stuck on Sierra on an early Pro :-(  High Sierra *may* work, 
though...

-- Dave