zabbix agent issue

I'm running Zabbix 2.0.5

I'm trying to get some data back from the zabbix agent trying to monitor a dell server using dell open manage.

For example I have the below line in the zabbix agent config file

[CODE]UserParameter=om.RAIDStatus,sudo /opt/dell/srvadmin/bin/omreport storage vdisk | grep Status | cut -f2 -d":" | grep Ok | wc -l[/CODE]

The result returned when you run the command manually is: "1". But in zabbix server I'm always getting back "0" as the value.

I tested this using the agent and got the correct result which is "1"
[CODE]
zabbix_agentd -t om.RAIDStatus
om.RAIDStatus[sudo /opt/dell/srvadmin/bin/omreport storage vdisk | grep Status | cut -f2 -d":" | grep Ok | wc -l] [t|1]
[/CODE]

I turned on the zabbix agent debug on and got the below
[QUOTE]
Run remote command [sudo /opt/dell/srvadmin/bin/omreport storage vdisk | grep Status | cut -f2 -d":" | grep Ok | wc -l] Result [1] [0]...
Sending back [0]
[/QUOTE]

Clearly the result returned is [1] so why is the zabbix agent sending back "0" ?

I'm having the same issue for all my other UserParameters, some which are suppose to return a string but return blank.

What I'm I doing wrong?