exec parameter

Hello,
I have Kannel 1.4.3 version and I want execute a script shell with the exec
parameter

this is my kannel conf and the script doesn't works. Where is my mistake(s)?
thanks in advance

group = core
admin-port = 13000
smsbox-port = 13001
admin-password = bar
box-deny-ip = "*.*.*.*"
box-allow-ip = "127.0.0.1"
log-level = 0
log-file = "/home/daniel/Documents/queue/bearer_01.log"
access-log = "/home/daniel/Documents/queue/kannel_01.access"

#---------------------------------------------
# SMSBOX SETUP
#
# Smsbox(es) do higher-level SMS handling after they have been received from
# SMS centers by bearerbox, or before they are given to bearerbox for
delivery

group = smsbox
bearerbox-host = 127.0.0.1
sendsms-port = 13013
global-sender = 13013
log-level = 0
log-file = "/home/daniel/Documents/queue/smsbox_01.log"

group = smsc
smsc = fake
smsc-id = test00
host = localhost
connect-allow-ip = 127.0.0.1
port = 10000
log-level = 0
log-file = "/home/daniel/Documents/queue/test_01.log"
#address-range=11
#my-number = 555


group = sms-service
keyword = default
text = "hola noi"
max-messages = 1

group = sms-service
keyword = pep
text = "hola pepitoo"
max-messages = 1

group = sms-service
keyword = page
post-url = "http://127.0.0.1/index.php"
concatenation = true

group = sms-service
keyword = ww
exec="/home/daniel/aa.sh"
#exec = "java -jar '/home/daniel/NetBeansProjects/bbdd/dist/bbdd.jar'"
#exec = "java /home/daniel/Documents/J/P1 %r"
#accepted-smsc=test00

#---------------------------------------------
# SEND-SMS USERS
#
# These users are used when Kannel smsbox sendsms interface is used to
# send PUSH sms messages, i.e. calling URL like
#
http://kannel.machine:13013/cgi-bin/sendsms?username=tester&password=foobar.
..

group = sendsms-user
username = tester
password = foobar
#user-allow-ip = ""