Clone User Linux

#!/bin/bash

# clone a user
# usage:
# if you named this as below then
# change to the directory and run this command
# sudo bash clone-user.sh

echo "============="
echo "this script will create a new user"
echo "based on an existing user's data"
echo
echo "You will be shown a list of users who can currently log on"
echo "Remember which user you would like to clone."
echo "You will be asked for the new user's name, their password"
echo "and the old user to clone".
echo "============="
echo

echo -n "New user's name: "
read newuser

echo -n "New user's password: "
read newpassword

echo

echo "Current users you can clone:"
echo "----"
sudo awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534) print $1}' /etc/passwd
echo

echo -n "Old user to clone: "
read olduser

echo
echo "You have selected: "
echo "----"
echo "new user: $newuser"
echo "new user password: $newpassword"
echo "old user: $olduser"
echo

olduser_GROUPS=$(id -Gn ${olduser} | sed "s/${olduser} //g" | sed "s/ ${olduser}//g" | sed "s/ /,/g")
olduser_SHELL=$(awk -F : -v name=${olduser} '(name == $1) { print $7 }' /etc/passwd)

echo "old user groups: "
echo "----"
echo $olduser_GROUPS
echo "olduser shell: "
echo $olduser_SHELL
read -rsp $'Press any key to continue or ctrl-c to exit...\n' -n1 key

sudo useradd --groups $olduser_GROUPS --shell $olduser_SHELL $newuser

echo $newuser:$newpassword | chpasswd

read -rsp $'ready to make home direcoty -- ctrl-c to exit...\n' -n1 key

sudo mkdir /home/$newuser
sudo chown -R $newuser:$newuser /home/$newuser

echo
echo "Script should be done now."
echo
echo "Do you see your new users name below?"
echo
sudo awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534) print $1}' /etc/passwd

echo
echo "We are now going to copy the old user's home folder to the new user"
echo "then change ownership to the new user"
echo
read -rsp $'Ready to copy home folder --- or ctrl-c to exit...\n' -n1 key

sudo rsync -aPv /home/$olduser/. /home/$newuser/
sudo chown -R --from=$olduser $newuser:$newuser /home/$newuser

echo
echo "Now we are going to change the names of files and folders to the new user"
echo

sudo grep -rlI $olduser /home/$newuser/ . | sudo xargs sed -i 's/$olduser/$newuser/g'

echo
echo "Done now."
echo
read -rsp $'Press any key to exit...\n' -n1 key
echo
echo