How to clone a machine (vdi) in virtual box

Step 1: Go to virtual box installation location

C:\> cd  C:\Program Files\Oracle\VirtualBox

Step 2: execute the cloning command with source and destination location 

C:\Program Files\Oracle\VirtualBox>VBoxManage clonehd "C:\Users\Administrator\VirtualBox VMs\Linux7\Linux7.vdi" "F:\testLinux7.vdi"
0%...10%...20%...30%...40%...50%...60%...70%...80%...90%...100%
Clone hard disk created in format 'VDI'. UUID: 30401791-44c0-4822-a4d2-4c78722de3fd