How do I configure GIT in TAC linux via command line or config file

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How do I configure GIT in TAC linux via command line or config file

I need to be able to rebuild my TAC server from a script, and one of the requirements is to configure the GIT repo setup, which is pointed towards an external bitbucket.org repository, in TAC (linux) using the command line or by copying in a config file.  Can anyone point me towards the following:

1. How to pass cli arguments during installation that will configure the GIT configuration in TAC to point to bitbucket.org

-or-

2. Show me where the GIT configuration, after being configured via the TAC webpage, is stored in the linux file system, so that I can modify this file directly during a rebuild.

 

Thanks for any assistance!