**To attach a volume to an instance** This example command attaches a volume (``vol-1234567890abcdef0``) to an instance (``i-01474ef662b89480``) as ``/dev/sdf``. Command:: aws ec2 attach-volume --volume-id vol-1234567890abcdef0 --instance-id i-01474ef662b89480 --device /dev/sdf Output:: { "AttachTime": "YYYY-MM-DDTHH:MM:SS.000Z", "InstanceId": "i-01474ef662b89480", "VolumeId": "vol-1234567890abcdef0", "State": "attaching", "Device": "/dev/sdf" }