How to replace local branch with remote branch entirely in Git?

 

1. Make sure you've checked out the branch you're replacing (from Zoltán's comment).

2. Assuming that master is the local branch you're replacing, and that "origin/master" is the remote branch you want to reset to:

   git reset --hard origin/master
   

This updates your local HEAD branch to be the same revision as origin/master, and --hard will sync this change into the index and workspace as well.

from: https://stackoverflow.com/questions/9210446/how-to-replace-local-branch-with-remote-branch-entirely-in-git