(21-11-2020, 11:42 AM)vain Wrote: A nice explanation of what Ctrl-d does. No, it does not “send an EOF character”, as many people believe. It flushes a buffer.

Like phillbush, I originally learned this from this book and have since quoted it a lot. :)

I think it makes much more sense, and is more memorizable, when you think about it from the terminal-processing perspective.
The EOT (end of transmission) control character is meant for your terminal, it's to control your terminal and not to control the processing of a file. It tells it you are done typing/editing and to send/flush whatever you got to the Unix server for processing. Once you make that distinction, it's much clearer.