On 8/24/20 10:32 AM, Hendrik Boom wrote: > > Mu memory may be failing ne after almost half a century, but I recall > that the original Unix, way back in the early 70's, > even directories could be read as files. Not that there was > some hidden trickery making them into files; instead there were > conventions how files could be treated as directories. >
I had to look up Plan 9, and in doing so, I found that "Everything is a file" has its own wikipedia page. It says, "But file descriptors are also created for things like anonymous pipes and network sockets via different methods. Therefore a more accurate description of this feature is Everything is a file descriptor." And the page for File descriptor says, "In Unix-like systems, file descriptors can refer to any Unix file type named in a file system. As well as regular files, this includes directories, block and character devices (also called "special files")" fsmithred
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