#!/bin/bash

PASSWORD="Password3!"
USERNAME="default"

if id -u "$USERNAME" >/dev/null 2>&1; then
        userdel -r -f $USERNAME
    adduser $USERNAME
    adduser $USERNAME sudo
    echo $USERNAME:$PASSWORD | chpasswd
else
        adduser $USERNAME
    adduser $USERNAME sudo
    echo $USERNAME:$PASSWORD | chpasswd
fi