In article , Bill W
wrote:


I have some past exposure to Unix/Linux, so I guess I have at least a
little familiarity with iOS. That memory is well faded, though.

although both ios and macos use unix under the hood, for ios, it's
completely invisible to the user, while for macos, it's there if you
want to muck around with it, but there's rarely, if ever, a need to.