for i in MD5SUMS debian-8.2.0-amd64-xfce-CD-1.iso do wget http://cdimage.debian.org/debian-cd/8.2.0/amd64/iso-cd/$i done grep debian-8.2.0-amd64-xfce-CD-1.iso MD5SUMS >> debian-8.2.0-amd64-xfce-CD-1.iso.md5 md5sum debian-8.2.0-amd64-xfce-CD-1.iso >> debian-8.2.0-amd64-xfce-CD-1.iso.md5 sudo dd if=debian-8.2.0-amd64-xfce-CD-1.iso of=/dev/sdb bs=512k