Dialog-based password changer script

chpasswd.sh

#!/bin/bash
## This script made to change your password with TUI dialog
## Original script made by NixCraft
## https://bash.cyberciti.biz/guide/A_password_box
# password storage
new=$(tempfile 2>/dev/null)

# trap it
trap "rm -f $new" 0 1 2 5 15

# get password with the --insecure option
dialog --title "Password" \
       --insecure \
       --passwordbox "Enter your new password" 8 50 2> $new

ret=$?

# make decison
case $ret in
  0)
    echo -e "${1-$USER}:$(cat $new)" | sudo chpasswd 2> /dev/null;;
  *)
    echo "Canceled.";;
esac