Revise paste Random Password Changer

#!/bin/bash
###################################################################### 
#Copyright (C) 2023  Kris Occhipinti
#https://filmsbykris.com

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation version 3 of the License.

#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with this program.  If not, see <http://www.gnu.org/licenses/>.
###################################################################### 
# Resets my kids password to a 4 char word and random number
# for use with crontab
# new passwords are sent to server for retrieval

user="kid"
dir="/home/${user}/.fbk"
word_file="${dir}/words"

[[ -d $dir ]] || mkdir -p "$dir" || exit 1
if [[ ! -f $word_file ]]
then
        grep -E '^[[:alpha:]]{4}$' /usr/share/dict/words|shuf|tr "[A-Z]" "[a-z]"|head -n25 > "$word_file"
        cat "$word_file" || exit 1
fi

password="$(shuf $word_file|head -n1)$RANDOM"
echo "$password"
echo "$password" > /tmp/.p
url="https://filmsbykris.com/passwordUpdate.php?device=${user}&p=${password}"
wget -qO /dev/null "$url"
#chpasswd <<< "$user:$password"
echo -e "$password\n$password" | passwd $user