Hello Marshall , Um quite contrare DOS was based on CPM which in turn was based on RT-11 . There was even a BIG law suit against M$ about that one which CPM lost (IIRC) . Hth, JimL On Thu, 31 Aug 2000, Thomas Marshall Eubanks wrote:
it's the last alphanumeric token in a string delimited by dots. And it doesn't exist anywhere except Windows. untrue. just think how crippled make(1) would be without extensions. DOS and Windows do NOT consider the extension to be part of
Jim Mercer wrote: the filename. In DOS, make.exe is made up of the filename "make", and the extension "exe". In Unix and MacOS, "make.exe" represents a filename "make.exe". The concept of the file extension doesn't exist as it does in DOS. Now that I think about it, though, VMS has file extensions, doesn't it? (Been a while since I last used VMS.) I don't know if the extensions are treated the way DOS and Windows treats extensions, though. In VMS (whihc is what DOS is based on AFAIK)
Steve Sobol wrote: the file name is name.ext;N (where N is the version number, which is incremented each time you save the file). Made for very easy simple minded configuration control, so that foo.exe;23 is the 23rd executable of the program foo.c
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