Execute bash script from Bamboo

[Alexandra]

Hi! 

I am trying to execute several simple bash commands from the Script task in bamboo, but with no luck, I've searched all related answers on the topic, but this didn't help, unfortunately. 

https://community.atlassian.com/t5/Bamboo-questions/Making-a-Bamboo-Script-execute-using-bin-bash/qaq-p/205364 for instance. 

I also tried 

#!/bin/bash
bash /path/to/some/shell/script/on/bamboo/server/script.sh

I need to rm -rf the directory and then move the build directory from bamboo instead. 

I am using bamboo user, the directory owner is bamboo, I even tried to change folder permissions to 777 just for the test, but all the time I receive "Permission denied" in the script task.

I tried to echo $"USER" at the begging of the script, and it gives me the correct result - the user is bamboo. 

I am a little bit confused, could you please help me?

My Bamboo version is 7.1.1

Ubuntu 18.04