bigfile.c

linux unix 入门代码上,是关于初级入门的,经典代码

#include <stdio.h>
#include <fcntl.h>

int
main()
{
	int fd;

	fd=open("/tmp/big",O_WRONLY|O_CREAT|O_TRUNC,0600);
	if (fd==-1) {
		perror("open");
		exit(1);
	}

	lseek(fd,1024*1024*1024-1,SEEK_SET);

	write(fd,"\0",1);

	close(fd);

	exit(0);
}