about zabbix_agentd -t & zabbix_get

[hokkai]

I write UserPArameter like this:
UserParameter=MariaDB.alive,zabbix_userparameter_m ariadb.php MariaDB.alive

on Zabbix Server ,I can be used to get the value zabbix_get
but on zabbix Agent ,I can't get anything,and console will be stop,must be use Ctrl+C stop.
why??

[aib]

UserParameter=MariaDB.alive,zabbix_userparameter_m ariadb.php MariaDB.alive

zabbix_userparameter_m - It is the script name?
Where is that script saved?
Do it works when you start it manually with the parameters from UserParameter string?

[hokkai]

serParameter=MariaDB.alive,zabbix_userparameter_ma riadb.php MariaDB.alive

sorry,i post error.

I don't know,What is the difference zabbix_agentd -t and zabbix_get?



zabbix_get.JPG on Zabbix Server use zabbix_get ,it's OK!
zabbix_agentd(1-3).JPG on Zabbix Agentd use zabbix_agentd -t ,
zabbix_agentd3.JPG is command running, ps -an result, until I press Crtl+C, like zabbix_agentd2.JGP.

I want to know why?