Update all your vagrant boxes at once

gistfile1.txt

#!/bin/bash

if [ $# -eq 0 ]; then
  echo "Box type must be specified (virtualbox, vmware_desktop, parallels)"
  exit 1
fi

# Find all boxes which have updates
AVAILABLE_UPDATES=`vagrant box outdated --global 2>/dev/null | grep outdated | tr -d "*'" | cut -d ' ' -f 2`

if [ ! ${#AVAILABLE_UPDATES[@]} -eq 0 ]; then
  for box in $AVAILABLE_UPDATES ; do
    echo "Found an update for $box"

    # Find all current versions
    VERSIONS=`vagrant box list | grep $box | cut -d ',' -f 2 | tr -d ' )'`

    # Add latest version
    vagrant box add --clean $box --provider $1 --force
    BOX_UPDATED="TRUE"

    # Remove all old versions
    for version in $VERSIONS ; do
      vagrant box remove $box -f --box-version=$version
    done
  done
  echo "All boxes are now up to date!"
else
  echo "All boxes are already up to date!"
fi

vagrant box outdated --global