Create Apache 2 vhost

#!/bin/bash
# The scipt automates the proccess of creation of virtual hosts on Apache 2 web server
# NOTE:
# 1. The script requires root previleges
# 2. The script allowes .htaccess override by default
# 3. The v-host directory will be dedecated to user and group www-data
# 4. The script edits /etc/hosts
# USAGE:
# 1. Run the scrip as root: sudo ./create_vhost.sh
# 2. Enter the virtual host name: If you  enter "example.local" it will be accessable at http://example.local
# @author Samuil Banti
# @copyright (C) 2015 - Samuil Banti
# @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html

# Configurations
web_dir="/var/www/"
sites_available="/etc/apache2/sites-available/"
sites_enabled="/etc/apache2/sites-enabled"

# Request root privileges
[ "$(whoami)" != "root" ] && exec sudo -- "$0" "$@"

# Request v-host name
echo "Enter the new virtual host name: "
read virtual_domain_name

# Validate the v-host name
if [ -d "$web_dir$virtual_domain_name" ]; then
	echo "Directory '$web_dir$virtual_domain_name already' exists!"
	exit
fi
if [ -f "$sites_available$virtual_domain_name.conf" ]; then
	echo "File '$sites_available$virtual_domain_name' already exists!"
	exit
fi

#Create v-host config file
echo "<VirtualHost *:80>" >> $sites_available$virtual_domain_name.conf
echo "DocumentRoot $web_dir$virtual_domain_name" >> $sites_available$virtual_domain_name.conf
echo "ServerName $virtual_domain_name" >> $sites_available$virtual_domain_name.conf
echo "ServerAlias $virtual_domain_name" >> $sites_available$virtual_domain_name.conf
echo "    <Directory />" >> $sites_available$virtual_domain_name.conf
echo "        Options FollowSymLinks" >> $sites_available$virtual_domain_name.conf
echo "        AllowOverride All" >> $sites_available$virtual_domain_name.conf
echo "    </Directory>" >> $sites_available$virtual_domain_name.conf
echo "    <Directory $web_dir>" >> $sites_available$virtual_domain_name.conf
echo "        Options Indexes FollowSymLinks MultiViews" >> $sites_available$virtual_domain_name.conf
echo "        AllowOverride All" >> $sites_available$virtual_domain_name.conf
echo "        Order allow,deny" >> $sites_available$virtual_domain_name.conf
echo "        allow from all" >> $sites_available$virtual_domain_name.conf
echo "    </Directory>" >> $sites_available$virtual_domain_name.conf
echo "</VirtualHost>" >> $sites_available$virtual_domain_name.conf

ln -s $sites_available$virtual_domain_name.conf $sites_enabled

# Create the root directory:
mkdir -m 777 "$web_dir$virtual_domain_name"
echo "Hello world" > "$web_dir$virtual_domain_name/index.php"

# Set the user to www-data
chown -R www-data:www-data /var/www/

# Create record in the hosts file:
echo "127.0.0.1	$virtual_domain_name" >> /etc/hosts

# Enable th virtual host
a2ensite $virtual_domain_name

/etc/init.d/apache2 restart

echo "The script was executed."
exit