bash GUI Get Password script for use with sudo -A

#!/bin/bash
## getpass copyleft 08/21/2018 Joseph Pollock - JPmicrosystems
## Last modified 08/21/2018
## Used with sudo -A
## Usage:
##  export SUDO_ASKPASS=/usr/local/bin/getpass
##  export SUDO_ASKPASS_TITLE="Dialog Title" ## optional
##  export SUDO_ASKPASS_PROMPT="Prompt Phrase" ## optional
##  sudo -A foo

prompt=""
[[ -n "$SUDO_ASKPASS_PROMPT" ]] && prompt="$SUDO_ASKPASS_PROMPT"
[[ -n "$SUDO_ASKPASS_TITLE" ]] && kdialog --title "$SUDO_ASKPASS_TITLE" --password "$prompt"
[[ -z "$SUDO_ASKPASS_TITLE" ]] && kdialog --password "$prompt"