How to do so. so that zabbix correctly executes the script?

Question

linux

Good afternoon.
You need to monitor one device using External Check.
The script that zabbix calls looks like this:

#!/bin/bash

status=`/etc/BGCashcheckServer/testserver.sh --dotest | grep Смена | sed 's/Смена открыта: //'`

if 
then
    echo "1"
else
   echo "0"
fi

The fact is that if you manually run the script, then 1 is displayed, but if Zabbix does it, then 0.
I already found out that when executed by Zabbix, the $status variable does not contain anything inside.
Is it about rights or something else?
Thank you.

Answer 1

From documentation:
So it is chmod o+x /etc/BGCashcheckServer/testserver.shchecked throughsudo -u zabbix ваш_скрипт.sh