a2mksite.sh

#!/bin/bash

VHOST_CONF=/etc/apache2/sites-available/
ROOT_UID=0
NOTROOT=87
WWW_ROOT=/var/www/

# owner of the site directory
WEBUSER=www-data

# check if is root
if [ "$UID" -ne "$ROOT_UID" ]
then
        echo "You must be root to run this script."
        exit $NOTROOT
fi

if [ -n "$1" ]
then
        DOMAIN=$1
else
        echo "You must provide a full domain name for this site, i.e. ‘example.com’ "
        echo -n "Run this script like ./a2createsite example.com"
        exit
fi

# create document root site folder
su $WEBUSER -c "mkdir -p ${WWW_ROOT}www.$DOMAIN/public_html"

# vhost file content 
# rewrite mod must be enabled
CONF="<VirtualHost *:80>\n\n\tServerName $DOMAIN\n\tServerAlias www.$DOMAIN\n\tDocumentRoot ${WWW_ROOT}www.$DOMAIN/public_html\n\n\t<Directory ${WWW_ROOT}www.$DOMAIN/public_html>\n\t\tOrder Deny,Allow\n\t\tAllow from all\n\t\tOptions FollowSymLinks Indexes\n\t</Directory>\n\n</VirtualHost>"

# write the vhost config file 
echo -e $CONF > ${VHOST_CONF}www.$DOMAIN

# enable site configuration
cd $VHOST_CONF
a2ensite www.$DOMAIN > /dev/null

echo "www.$DOMAIN was created. In 5 seconds your apache will be reloaded"
sleep 5

/etc/init.d/apache2 reload

echo "Done"
exit 0