TerminalSettings.VEOF (gb.term)

End-of-file character (EOF).

More precisely: this character causes the pending terminal buffer to be sent to the waiting user program without waiting for end-of-line. If it is the first character of the line, the read() system call in the user program returns 0, which signifies end-of-file.

Recognized when ICANON is set, and then not passed as input.