echo -e “deb http://mirrors.aliyun.com/debian/ jessie main non-free contrib \n
deb http://mirrors.aliyun.com/debian/ jessie-proposed-updates main non-free contrib \n
deb-src http://mirrors.aliyun.com/debian/ jessie main non-free contrib \n
deb-src http://mirrors.aliyun.com/debian/ jessie-proposed-updates main non-free contrib \n ” > test
