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Which of the following system call is used for closing a file?

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Which of the following system call is used for closing a file?

(a) open

(b) lseek

(c) close

(d) write

I have been asked this question in an online interview.

The query is from System Calls Basics in portion System Programming I – Files of Unix

1 Answer

+1 vote
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Best answer
Correct option is (c) close

To explain I would say: A program automatically closes all open files before termination, but it’s a good practice to close them explicitly. The close system call is used for closing a file.

int close (int fd)

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