Linux练习（系统调用复制文件）

#include 
#include 
#include 
#include 
#include 

int main()
{
        char block[1024];
        int in,out;
        int nread;

        in=open("file.in",O_RDONLY);
        out=open("file.out",O_WRONLY|O_CREAT,S_IRUSR|S_IWUSR);
        while ((nread=read(in,block,sizeof(block)))>0)
                write(out,block,nread);
        exit(0);

}

转载于:https://www.cnblogs.com/tiandsp/archive/2012/09/06/2673386.html