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System Programming

Which of the following is correct for the standard file descriptors that are automatically opened in UNIX?

STDIN_FILENO = 0, STDOUT_FILENO = 1, STDERR_FILENO = 2

STDOUT_FILENO = 0, STDERR_FILENO = 1, STDERR_FILENO = 2

STDERR_FILENO = 0, STDOUT_FILENO = 1, STDIN_FILENO = 2

STDIN_FILENO = 0, STDERR_FILENO = 1, STDOUT_FILENO = 2

Answer:
STDIN_FILENO = 0, STDOUT_FILENO = 1, STDERR_FILENO = 2

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