Update All vagrant boxes

vagrant_box_update_global.sh

cd /tmp
echo "Checking for Outdated Boxes"
vagrant box outdated --global | awk '/outdated/{print $2}' > /tmp/outdated_boxes
sleep 2
cat /tmp/outdated_boxes
sleep 1
for box in $(cat outdated_boxes)
do
  echo "Updating : $box "
  echo "vagrant init $box" | sh
  vagrant box update
  rm -f Vagrantfile
done
vagrant box prune