Add new no-shell-user and add self to group

add_no_shell_user.sh

#!/bin/bash

if [ -z "$1" ]; then
  echo "Please provide a name for the new user!"
  exit 1
fi

echo "Creating user and group -$1- and adding you ($(whoami)) to that group."
echo -n "Sure ye wanna do this? (y/N) -> "

read answer

if [ "$answer" == "y" ] || [ "$answer" == "Y" ]; then
  echo "Doing it so!"
  sudo useradd -r -s /sbin/nologin $1
  sudo usermod -a -G $1 $(whoami)
  echo "Done!"
  echo $(id $1)
else
  echo "Ok, did not do anything... bye!"
fi