实例6-9.c

Linux下C语言编程例子

#include <unistd.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
int main()
{
char c;
int in, out;

in = open("file.in", O_RDONLY);
out = open("file.out",O_WRONLY | O_CREAT,S_IWUSR | S_IWUSR);
while (read(in,&c,1) == 1)
   write(out,&c,1);
exit(0);
}