git checkout branch version code example
Example: git checkout branch
truelover@PEACE project % git checkout master
truelover@PEACE project % git checkout branch_name
#create branch
truelover@PEACE project % git checkout -b new_branch_name
truelover@PEACE project % git checkout master
truelover@PEACE project % git checkout branch_name
#create branch
truelover@PEACE project % git checkout -b new_branch_name