destroy_vms.sh

#!/bin/bash
MODULE_NAME=shutit_docker_slim
if [[ $(command -v VBoxManage) != '' ]]
then
	while true
	do
		VBoxManage list runningvms | grep ${MODULE_NAME} | awk '{print $1}' | xargs -IXXX VBoxManage controlvm 'XXX' poweroff && VBoxManage list vms | grep ${MODULE_NAME} | awk '{print $1}'  | xargs -IXXX VBoxManage unregistervm 'XXX' --delete
		# The xargs removes whitespace
		if [[ $(VBoxManage list vms | grep ${MODULE_NAME} | wc -l | xargs) -eq '0' ]]
		then
			break
		else
			ps -ef | grep virtualbox | grep ${MODULE_NAME} | awk '{print $2}' | xargs kill
			sleep 10
		fi
	done
fi
if [[ $(command -v virsh) ]] && [[ $(kvm-ok 2>&1 | command grep 'can be used') != '' ]]                                                                                                                        
then                                                                                                                                                                              
	virsh list | grep ${MODULE_NAME} | awk '{print $1}' | xargs -n1 virsh destroy
fi