bash script to create virtual host vhost with apache httpd and CentOs 7

newvhost.sh

#!/bin/bash
# This script is used for create virtual hosts on CentOs.
# Created by alexnogard from http://alexnogard.com
# Improved by mattmezza from http://you.canmakethat.com
# Further Improved by bxmas13 from https://brianchristmas.com
# Feel free to modify it
#   PARAMETERS
#
# $usr          - User
# $dir          - directory of web files
# $servn        - webserver address without www.
# $cname        - cname of webserver
# EXAMPLE
# Web directory = /var/www/
# ServerName    = domain.com
# cname            = devel
#
#
# Executes as root user
#
# This will check if directory already exist then create it with path : /directory/you/choose/domain.com
# Set the ownership, permissions and creates a test index.php file in /directory/you/choose/domain.com/htdocs
# Create a vhost file domain in your /etc/httpd/conf.d/ directory.
# And adds the new vhost to the hosts.
#
#
if [ "$(whoami)" != 'root' ]; then
echo "You have to execute this script as root user"
exit 1;
fi

cname="www"
dir="/var/www/"
usr="apache"
listen="*"
read -p "Enter the FQDN (without www) : " servn
read -p "Enter a CNAME ([${cname}]) : " cname
read -p "Enter the path of directory you wanna use [${dir}] (add trailing slash): " dir
read -p "Enter the user you wanna use [${usr}] : " usr
read -p "Enter the listened IP for the server [${listen}]: " listen
cname=${cname:=www}
dir=${dir:=/var/www/}
usr=${usr:=apache}
listen=${listen:=*}

if ! mkdir -p $dir$servn/htdocs; then
echo "Web directory already Exist !"
else
echo "Web directory created with success !"
fi
echo "<?php echo '<h1>$cname $servn</h1>'; ?>" > $dir$cname_$servn/htdocs/index.php
chown -R $usr:$usr $dir$servn
chmod -R '755' $dir$servn
mkdir /var/log/$servn

alias=$cname.$servn
if [[ "${cname}" == "" ]]; then
  alias=$servn
fi
GLOBIGNORE=*
echo "#### $cname $servn
<VirtualHost $listen:80>
  ServerAdmin webmaster@$servn
  ServerName $servn
  ServerAlias $alias
  DocumentRoot $dir$servn/htdocs
  ErrorLog /var/log/httpd/${servn}_error.log
  <Directory $dir$servn/htdocs>
      Options -Indexes +FollowSymLinks
      AllowOverride All
      Require all granted
  </Directory>
  RewriteEngine on
  RewriteCond %{SERVER_NAME} =$cname.$servn [OR]
  RewriteCond %{SERVER_NAME} =$servn
  RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
</VirtualHost>
<IfModule mod_ssl.c>
  <VirtualHost $listen:443>
     ServerAdmin webmaster@$servn
     DocumentRoot /var/www/$servn/htdocs
     ServerName $servn
     ServerAlias $cname.$servn
     ErrorLog /var/log/httpd/${servn}_ssl_error.log
     <Directory "/var/www/$servn/htdocs">
        Options -Indexes +FollowSymLinks
        AllowOverride All
        Require all granted
    </Directory>
  </VirtualHost>
</IfModule>" > /etc/httpd/conf.d/${servn}.conf
if ! echo -e /etc/httpd/conf.d/${servn}.conf; then
  echo "Virtual host wasn't created !"
else
  echo "Virtual host created !"
fi

echo "127.0.0.1 $servn" >> /etc/hosts

if [ "$alias" != "$servn" ]; then
  echo "127.0.0.1 $alias" >> /etc/hosts
fi

echo "Testing configuration"
apachectl configtest
echo "Would you like me to restart the server [y/n]? "
read q
if [[ "${q}" == "yes" ]] || [[ "${q}" == "y" ]]; then
  systemctl restart httpd
fi
echo ""
echo "======================================"
echo "Virtual host has been created!"
echo ""
echo "You should be able to see your website at http://$servn"
echo "Config file: /etc/httpd/conf.d/${servn}.conf"
echo "======================================"
echo ""

Fixed directory/variable issues.