SHELL

git pull remote changes to local

git checkout my_branch    # move on your branch (make sure it exists)
git fetch origin          # fetch all changes
git pull origin master    # pull changes from the origin remote, master branch and merge them into my_branch
git push origin my_branch # push my_branch

how to pull remote changes to local branch

git pull origin my_remote_branch

how to pull changes from a local branch

git pull . master