#!/bin/bash

declare -g PASSWORD=""
declare -gr WORDLIST="/usr/share/dict/words-custom"

END=4
for ((i=1;i<=END;i++)); do
    LINE=$(($RANDOM + 1))
    WORD=$(sed $LINE!d $WORDLIST)
    PASSWORD+="${WORD}-" 
done

NUMBERS=$(($RANDOM % 10))$(($RANDOM % 10))$(($RANDOM % 10))$(($RANDOM % 10))
PASSWORD+=$NUMBERS
printf "$PASSWORD"