Bash script that automatically downloads the latest Vagrant Ubuntu package

download-vagrant.sh

#! /usr/bin/env bash
set -e

vagrantBaseUrl="https://releases.hashicorp.com"

latestRelease=$(\
  wget -q -O - "${vagrantBaseUrl}/vagrant/" \
    | grep 'a href="' \
    | grep -v '<a href="../">../</a>' \
    | head -n 1 \
    | grep -oP '(?<=<a href="/vagrant/)(.+)(?=/")' \
)

debianPackage=$(
  wget -q -O - "${vagrantBaseUrl}/vagrant/${latestRelease}/" \
    | grep -oP '(?<=href=").+_x86_64.deb(?=")'
)

downloadUrl="${vagrantBaseUrl}${debianPackage}"

wget -q --trust-server-names "${downloadUrl}"