load variables from the .env file to the terminal environment.

envify.sh

#!/bin/sh
# example: ./scripts/envify.sh .env.dev
envify() {
  ENV_FILE="$(pwd)/.env"
  if [ -n "$1" ]; then
		echo "FILE: $1"
    ENV_FILE="$(pwd)/${1}"
  fi

  if [ -f "$ENV_FILE" ]; then
	  echo "Loading ENV vars from $ENV_FILE"
  else
		echo "FILE: $1 NOT FOUND"
  fi

  set -a
    [ -f "$ENV_FILE" ] && . "$ENV_FILE"
  set +a
}

[ $# = 0 ] && echo "Will load .env file" && envify
[ $# != 0 ] && echo "Will load $* file" && envify "$@"