EOF /E-O-F/ N. [abbreviation, `End Of File'] 1.

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EOF /E-O-F/ n.

[abbreviation, `End Of File']
1. [techspeak] The out-of-band value returned by C's
sequential character-input functions (and their equivalents in
other environments) when end of file has been reached. This value
is usually -1 under C libraries postdating V6 Unix, but was
originally 0. DOS hackers think EOF is ^Z, and a few Amiga hackers
think it's ^\. 2. [Unix] The keyboard character (usually control-D,
the ASCII EOT (End Of Transmission) character) that is mapped by
the terminal driver into an end-of-file condition. 3. Used by
extension in non-computer contexts when a human is doing something
that can be modeled as a sequential read and can't go further.
"Yeah, I looked for a list of 360 mnemonics to post as a joke, but
I hit EOF pretty fast; all the library had was a JCL manual."
See also EOL.