DynamicBash.sh is not recognized while executing the Bamboo build. how to solve?

Question

As of Nov-2020: By using gitbash versioned code changes to bitbucket. Through Bamboo changes has to be deployed to Salesforce Org. 
Bamboo build fails with the error: "'dynamicBash.sh' is not recognized as an internal or external command, operable program or batch file". Was working fine previously. suddenly getting this error. Please suggest solutions.

Update: 14-june-2021:
Again we are getting the same error for another sandbox of same project.

Nic Brough -Adaptavist- · Answer

As you can't run build agents on Salesforce Cloud, I have no idea what this has to do with your problem.

As I said, you'll need to configure your build such that the build agent has an environment that includes the scripts it needs

Arunprasath J · Answer

Hi Nic, its for Salesforce cloud. Its was working fine previously. Suddenly getting this error.

Nic Brough -Adaptavist- · Answer

It looks to me like you are trying to run a shell script on a windows server - unless the windows server has a Unix-like command shell installed and configured, this isn't going to work.

You'll need to go to the windows server running the build and configure it such that the shell script is runnable by the Bamboo agent