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    Question

    How do you check the exit status of the last executed

    command in a shell?
    A $? Correct Answer Incorrect Answer
    B $! Correct Answer Incorrect Answer
    C $0 Correct Answer Incorrect Answer
    D $# Correct Answer Incorrect Answer
    E $$ Correct Answer Incorrect Answer

    Solution

    $? returns the exit status (0 for success, non-zero for failure) of the last command.

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