Git, commit, memo

----- cancel add
add ./a.txt
reset ./a.txt

----- edit lastest commit msg.
git commit --amend

----- commit squash
git rebase -i HEAD^2






http://git-scm.com/book/ko/v1/Git-%EB%8F%84%EA%B5%AC-%ED%9E%88%EC%8A%A4%ED%86%A0%EB%A6%AC-%EB%8B%A8%EC%9E%A5%ED%95%98%EA%B8%B0