Good Reference to learn git.

• en) https://git-scm.com/book/en/v2
• fr) https://git-scm.com/book/fr/v2
• de) https://git-scm.com/book/de/v1
• kr) https://git-scm.com/book/ko/v2
• ru) https://git-scm.com/book/ru/v1

http://git-scm.com
http://www.kernel.org/pub/software/scm/git/docs/gittutorial.html
http://www.kernel.org/pub/software/scm/git/docs/user-manual.html
https://www.kernel.org/pub/software/scm/git/docs/giteveryday.html