script to add dovecot user

#!/bin/sh
if [ ! $# = 1 ]
then
echo "Usage: $0 username@domain"
exit 1
else
user=`echo "$1" | cut -f1 -d "@"`
domain=`echo "$1" | cut -s -f2 -d "@"`
if [ -x $domain ]
then
echo "No domain given\nUsage: $0 username@domain"
exit 2
fi
echo "Adding user $user@$domain to /etc/dovecot-users"
echo "$user@$domain::5000:5000::/home/vmail/$domain/$user/:/bin/false::"
>> /etc/dovecot-users

# Create the needed Maildir directories
echo "Creating user directory /home/vmail/$domain/$user"
# maildirmake.dovecot does only chown on user directory, we'll
create domain directory instead
if [ ! -x /home/vmail/$domain ]
then
mkdir /home/vmail/$domain
chown 5000:5000 /home/vmail/$domain
chmod 700 /home/vmail/$domain
fi
/usr/bin/maildirmake.dovecot /home/vmail/$domain/$user
chown 5000:5000 /home/vmail/$domain
chmod -R vmail:vmail /home/vmail/$domain

# To add user to Postfix virtual map file and relode Postfix
echo "Adding user to /etc/postfix/vmaps"
echo $1 $domain/$user/ >> /etc/postfix/vmaps
echo $domain >> /etc/postfix/vhosts
postmap /etc/postfix/vmaps
postfix reload
fi
echo "\nCreate a password for the new email user"
passwd=`dovecotpw`
echo "Adding password for $user@$domain to /etc/dovecot-passwd"
if [ ! -x /etc/dovecot-passwd ]
then
touch /etc/dovecot-passwd
chmod 640 /etc/dovecot-passwd
fi
echo "$user@$domain:$passwd" >> /etc/dovecot-passwd
/etc/init.d/dovecot restart
exit 0