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close

Syntax

 
#include <unistd.h>

int close(int fd);

Description

The open file associated with fd is closed.

Return Value

Zero if the file was closed, nonzero if fd was invalid or already closed.

Portability

ANSI/ISO C No
POSIX 1003.2-1992; 1003.1-2001

Example

 
int fd = open("data", O_RDONLY);
close(fd);


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