Creating alert from bash script

[yatta]

Hi,
I want to create an alert from a bash script's output.
If the script output has some specific text, then I'll send an email.

I guess I can use "SSH checks" for this but I wonder is there any other mechanism exist on Zabbix? For example is Zabbix agent can run this bash script on the target server?

Thanks!

[tim.mooney]

Yes, zabbix agent can run the bash script as a custom item.

https://www.zabbix.com/documentation/5.0/en/manual/config/items/userparameters

[yatta]

Thanks for te reply Timi,
I have one more question: in the docs below it says "STEP 2 : Add the command to zabbix_agentd.conf"

https://www.zabbix.com/documentation/6.0/en/manual/config/items/userparameters/extending_agent

So I want to run a command at around 30 servers. Should I add this parameter to these 30 servers' "zabbix_agentd.conf" file, or only Zabbix server's "zabbix_agentd.conf" file?

Regards.

[cyber]

To each agents config file. Otherwise that agent does not know, what to do.

[Singularity]

I created tons of bash as well as python scripts for the client I work for. Zabbix can directly/indirectly execute any script.
If it is bash script then define UserParameter inside the zabbix-agent.d folder maybe in custom.conf file. UserParameter = key[*], <path to bash script> '$1' '$2' ... n number of parameters
If it not a bash script then work around is create the bash script which executes the required script. By this way the UserParameter always executes a bash script .
Note : For scripts that takes more than 30 seconds to execute, it is always better to go with zabbix_sender.

[yatta]

Thanks cyber&singularity! I'll follow with custum items.