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What is stderr?

  • A.standard error
  • B.standard error types
  • C.standard error streams
  • D.standard error definitions

Answer: C

Correct answer: standard error streams

stderr is one of the three standard streams opened automatically, alongside stdin and stdout. Error messages go to it rather than to stdout so that they still appear when the program’s output is redirected to a file - and because it is unbuffered, they appear at once.

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