Re: Shell scripts

[dpeschel@sumatra.cs.washington.edu (Derek Peschel)]

On Sat, 11 Mar 2000 18:06:56 +0900, Paul Guertin <pg@sff.net> wrote:

>On the Apple II, I used to accidentally put control characters in the
>file name because the keyboard didn't have true N-key rollover. If you
>held three keys down simultaneously, it would often (always?) insert a
>fourth character among the three. Frex, holding down L, O, and G always
>made a Y come out. I knew it was time for bed when most of my CATALOG
>commands came out as CATALOYG. (That was before I installed GPLE, which
>used the macro ESC-x to catalog drive x.)

Beagle Brothers published a trick that let you get the three missing ASCII
characters [ \ _ on the Apple ][+ by using the "phantom key" property of
the keyboard.

(Actually, I think that "phantom key" syndome is a property of many keyboard
without N-key rollover, not just the Apple one.  Old HP calculators had it,
for example.  That's how you could get to the undocumented timer on the HP45.)

-- Derek