Shell script to clone a Parallels VM

ParallelsVMCloner

#! /bin/bash

# This script is used to back up/clone a Parallels VM on a laptop running
# OSX.  Cloned VMs are named by the format <identifier>YYYYMMDD e.g
# w8_20140701 might be Windows 8 clone.

# Check that power is attached. If there's only one line, then power isn't on.
adapter_details_line_count=$(pmset -g adapter | wc -l)

if [ $adapter_details_line_count -eq 1 ] ; then
    exit 0
fi

vm_to_be_cloned="Windows 8.1"
backup_path="/Volumes/path/to/your/location"
clonePrefix="w8_"

# use the date to create the name of the cloned item
date_portion=$(date "+%Y%m%d")
new_vm_name=$clonePrevix$date_portion

# check that the VM isn't running
vm_status=$(prlctl list name "$vm_to_be_cloned" --no-header --output status)
if [[ $vm_status == *stopped* ]]; then
  # see if the drive is attached
  if [ -d $backup_path ]; then
 	  # make sure that a clone hasn't been done for the day
 	    if [ ! -d "$backup_path/$new_vm_name.pvm" ]; then
	      prlctl clone "$vm_to_be_cloned" --name $new_vm_name --dst $backup_path   
 	      # unregister the new vm from Parallels (because you aren't going to be using it, and it mostly won't be available)
	     prlctl unregister $new_vm_name
	  fi
  fi
fi