remote add origin to GitHub

[vagrant@localhost asteroids]$ git remote
[vagrant@localhost asteroids]$ git remote add origin git@github.com/hoge/test.git  
[vagrant@localhost asteroids]$ git remote
origin
[vagrant@localhost asteroids]$ git remote -v
origin  git@github.com/hoge/test.git (fetch)
origin  git@github.com/hoge/test.git (push)

get change from remote repository, same as git fetch.

[vagrant@localhost reflections]$ git pull origin master