On 9Sep 2017, at 12:34 AM, Steve Johnson <scj@yaccman.com> wrote:

For people used to that world, "echo hello >hi" was literally jaw dropping.  Many people had to have it explained twice, because they literally could not conceive of a file being created so easily.  I had worked in the computing center for a couple of years, and probably gave more than my share of demos to mainframe users...

Steve