Add user with cusmoized useradd command

user-add.sh

#!/bin/bash

USER=$1

[[ $USER = "" ]] && echo 'Please set a user name' && exit;

useradd -s /bin/bash ${USER}

[[ $? -ne 0 ]] && echo 'You should have root permission!' && exit;

mkdir /home/${USER}

chown -R ${USER}:${USER} /home/${USER}

echo "Creating ${USER} has been done..."
echo "Don't forget to use passwd to set password for ${USER}!"

printf "\n"

echo "Add User to sudo group......"

gpasswd -a ${USER} sudo