Alert script can't write to file

[Sosisoft]

Hello everyone,
I have problems with alert script located in /usr/lib/zabbix/alertscripts:

#!/bin/bash
sendto="$1"
message="$2"
username="sender"
password="some pwd"
provider="Orange"
directory=$(pwd)

# JSON data
data="{"auth":{"username":"$username","pass word":"$password"},"provider":"$provider",\ "number":"$sendto","content":"$message" }"
response=$(curl -sS -X POST [URL]http://smsserver/goip/sendsms/[/URL] -H "Content-Type: application/json" -d "$data")
log_file="sms_server_response.log"
timestamp=$(date +"%d.%m.%Y %H:%M:%S")
echo "$timestamp $response" >> "$directory/$log_file"​

I can call this script with Media type/Test and it works fine(sends SMS over SMS server) if last row echo.... is commented.
If not I got permission denied to write in log, but SMS is sent .
Owner of -R /usr/lib/zabbix is zabbix user.

Please what I need to do to complete the script?

Kind regards,
Sosisoft

[cyber]

Check your selinux errors... there might be some things missing for zabbix user to be able to create/write etc that logfile in that particular place.

[Sosisoft]

Hi, selinux is completely disabled, but I foud other solution here https://www.shellhacks.com/sudo-echo...ission-denied/

$ echo '<something>' | sudo tee --append <file.log>

but now I have other problem the log file is created in / (root dir) not in the directory where alert script is located /usr/lib/zabbix/alertscripts/
I have the same result even if I define the full path instead of file.log
with command

sudo visudo

I added the root permision to the tee command. This doesn't worked for echo command!