Can I store Shell commands in Git for a Jenkins job and run that job which needs these scripts

[Vijay Gongle]

Hi, 

I have a Jenkins freestyle/Maven job which has a bunch of shell script in the post steps written. 

Can I store these scripts in the Git and use it when someone runs the proejct. 

Note: SCM is configured with its appropriate repo url where the actual code is pulled. 

And these shell scripts run as post step which I want to get these from Git as well. How can I do that ? 

Help is appreciated. 

Thanks in advance!