Why are two ^D presses necessary to exit `cat`? – unix.stackexchange.com

Why are two ^D presses necessary to exit `cat`? – unix.stackexchange.com

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Let's run cat and then type a then ^D - you will see that cat did not exit. Compare it with cat + a + Enter + ^D - now cat did exit. So, why two ^D presses are necessary to exit cat in the first ...

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