Update terraform to latest release

terraform-update.sh

#!/bin/bash

current_version=$(terraform -v | head -n1 | cut -dv -f2)

echo "Running terraform $current_version"

echo -n "Checking for updates..."
version=$(curl -s https://releases.hashicorp.com/terraform/ | grep -vE '(alpha|beta|rc)' | grep 'href="/terraform' | cut -d\" -f2 | head -n1 | cut -d\/ -f3)

if [ "$version" = "$current_version" ]; then
    echo "Already updated"
    exit;
else
    echo "New release $version"
fi

url=https://releases.hashicorp.com/terraform/${version}/terraform_${version}_linux_amd64.zip

TMPFILE=`mktemp`
dest=~/bin
curl -L "$url" -o $TMPFILE
unzip -d $dest $TMPFILE
rm $TMPFILE