Migrations are a common part of being a Virtualization Admin. Most commonly you will be asked to perform P2V (physical to virtual), however there are times when you will have to migrate between virtual platforms. Most recently, I had to migrate a pair of VMs under the control of a third-party entity who were running some sort of xen environment.
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Having been a heavy VirtualBox user while under Linux, I once came across this useful interactive script that I could run in my drop-down terminal that would easily allow me to manage my VMs. So useful was it, that it was aliased on all workstations i used, and carried around in my dropbox account. Here is a screenshot of it in action:
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gbolo

Security + DevOps Engineer

DevOps Engineer

Toronto