Simple script to install guest additions on a linux, virtualbox guest. Pretty unsophisticated so far

guest_additions.bash

#!/bin/bash
# Simple script to install guest additions on a linux, virtualbox guest.
# Pretty unsophisticated so far
# Adapted from https://docs.vagrantup.com/v2/virtualbox/boxes.html

# Virtualbox version
version=4.3.28
if [ -n "$1" ]; then
        version=$1
fi
prefix=VBoxGuestAdditions
iso=${prefix}_${version}.iso
url=http://download.virtualbox.org/virtualbox/${version}/$iso
mount_dir=/media/$prefix

sudo apt-get install linux-headers-generic build-essential dkms

wget --continue "$url"

sudo mkdir $mount_dir
sudo mount -o ro $iso $mount_dir
sudo sh $mount_dir/VBoxLinuxAdditions.run
sudo umount $mount_dir
sudo rmdir $mount_dir