script to add sudoers

add_sudoer.sh

#!/bin/bash

# Usage
# $ sudo chmod +x add_sudoer.sh
# $ ./add_sudoer.sh username
#
# add a number of users saved in txt
# $ ./add_sudoer.sh `cat list_of_users.txt`
#
# --> list of users to add separated by space
# --> echo "user1 user2 " >> list_of_users.txt

while [[ -n $1 ]]; do
  sudo adduser $1 && sudo usermod -aG sudo $1;
  shift
done