On 2023-12-09, Eric S Fraga <e.fraga@ucl.ac.uk> wrote: > On Friday, 8 Dec 2023 at 17:06, Pocket wrote: >> In Unix and Linux there isn't a file extension, that is a microsoft >> invention. > > Predates MS by years. Systems like RSTS/E on PDP-11s, just to name one. They certainly are convenient. I must be stupid or something.