automate the VirtuaBox VM configuration to host MacOS

setupMacOSVM.sh

#!/bin/bash

# This script to aims to automate the VirtuaBox VM 
# configuration to host MacOS 

# Exit immediately if a pipeline returns a non-zero status.
set -o errexit

# Return value of a pipeline is the value of the last command to exit with a non-zero status or zero
# if all commands in the pipeline exit successfully.
set -o pipefail

# Treat unset variables and parameters other than the special parameters ‘@’ or ‘*’ as 
# an error when performing parameter expansion.
set -o nounset

function initVM(){
        VBoxManage modifyvm "${VM_NAME}" --cpuidset 00000001 000106e5 00100800 0098e3fd bfebfbff
        VBoxManage setextradata "${VM_NAME}" "VBoxInternal/Devices/efi/0/Config/DmiSystemProduct" "iMac11,3"
        VBoxManage setextradata "${VM_NAME}" "VBoxInternal/Devices/efi/0/Config/DmiSystemVersion" "1.0"
        VBoxManage setextradata "${VM_NAME}" "VBoxInternal/Devices/efi/0/Config/DmiBoardProduct" "Iloveapple"
        VBoxManage setextradata "${VM_NAME}" "VBoxInternal/Devices/smc/0/Config/DeviceKey" "ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
        VBoxManage setextradata "${VM_NAME}" "VBoxInternal/Devices/smc/0/Config/GetKeyFromRealSMC" 1
}

function printHelp(){
    echo "setupMacOSVM.sh : Initialise the MacOS VirtualBox VM."
    echo "Usage: ./setupVm.sh [options]"
    echo "options: "
    echo "    -n, --name                       The name of the VM to initialise (default is \"MACOS\") "
    echo "    -h, --help                       Display this help message."
    exit 0
}

# parse arguments
while (( "$#" )); do
    case "$1" in
    -n|--name)
        echo "Initialise VM "
        VM_NAME=-${2:-default}
        initVM
        exit 0
        ;;
    -h|--help)
        printHelp
        exit 0
        ;;
    *)
        echo -e "Invalid Option: $1" 
        exit 1
        ;;
  esac
done