14 Oct
2019
14 Oct
'19
8:08 a.m.
With JCL it is as easy to read one tape as it is to read 1000 tapes.
On 2019, Oct 13, at 8:36 PM, Jon Forrest
<nobozo(a)gmail.com> wrote:
On 10/13/2019 2:45 PM, Steve Johnson wrote:
I did have the opportunity in the early years to
demonstrate Unix to several dozen people, mostly users of the (IBM) mainframe computers
and the GE/Honeywell Time Sharing System. The sequence that initiated gasps, confusion,
and ultimately joy was:
% echo hello joe > hijoe
% cat hijoe
hello joe
A technically equivalent but more dramatic version of this
that I used to use back then was a shell script that would
prompt for the name of a file to display, and then display the
file whose name the user entered.
This would make steam come out of the ears of the IBM mainframe
people because it wasn't possible to do that on the IBM mainframe
in use at the time.
Jon