I would like to get hold of this PDF. Does anyone know if it is copyrighted, etc. or if not where I can get it from?
Basic documentation in PDF and HTML format can be found on the OS 3.9 CD itself. There is also a OS 3.9 book, this is a standalone product which was sold seperately.
You have no idea how long it took me to find "endcli" (WHAT were they thinking? how about "quit" or "exit"! )
Don't forget that "endcli" is a mid 80ies command. Not sure how many products used "quit" or "exit" at that time. :-D
