anil@Anil:~$ cd /home/anil/Desktop
anil@Anil:~/Desktop$ ls
exo-web-browser.desktop       lec6-Tree.pps
install-depot-multisystem.sh  ubuntu.iso
anil@Anil:~/Desktop$ mv ubuntu.iso ubuntu-16.04-desktop-amd64.iso
anil@Anil:~/Desktop$ sudo dd if=ubuntu-16.04-desktop-amd64.iso   of=/dev/sdb
[sudo] password for anil: 
2902112+0 records in
2902112+0 records out
1485881344 bytes (1.5 GB) copied, 299.771 s, 5.0 MB/s
anil@Anil:~/Desktop$