Linux C 创建新目录，然后转换工作空间到该目录下，并调用wget函数下载文件到新建目录下

#include<stdio.h>

#include <sys/stat.h>

int main ()

{

char wget_cmd[100];

char *pathname="/var/www/html/sssnsd/";

char buf[50];

if(mkdir(pathname, 0777)==-1)

{

perror("mkdir error");

return -1;

}

if (chdir(pathname)<0)

{perror("chdir error");

return -1;

}

getcwd(buf,50);

printf("%s",buf);

sprintf(wget_cmd,"wget -q http://127.0.0.1/snsd.mp4");
system(wget_cmd);

rename();

return 0;

}