Does git gets installed in IBM/AS400
The YiPs site has instructions on how to get it running in PASE. You can find it here:
http://youngiprofessionals.com/wiki/index.php/PASE/OpenSourceBinaries
Scroll to the middle of the page or search the page for "Git".
UPDATE
I've since written this article describing how to install Git on IBM i.
A friend of mine wrote an unpublished article on installing Git on IBM i. I need to encourage him to publish it.
I'm running git on my IBM i since over a year now. As Alan Seiden responded earlier, I've done an article about setting it up. I got it finished finally: