The infinitely profitable program

[Raymond Wiker]

> On 03 Jul 2016, at 01:00 , Eric Smith <spacewar at gmail.com> wrote:
> 
> On Sat, Jul 2, 2016 at 11:29 AM, Eric Christopherson
> <echristopherson at gmail.com> wrote:
>> Genius. But I would have thought CP/M would at least require a .com file to
>> have a header.
>> http://peetm.com/blog/?p=55
> 
> Multiple people independently invented the zero-byte CP/M program,
> which is obviously the shortest possible useful computer program, but
> I'd never before heard of anyone succeeding, or even attempting, to
> sell the program.

I think the original implementation of /bin/true was a zero-length file, while /bin/false worked by not existing at all.