Git

  Version Control 

Okay...How to?

http://git-scm.com/book/zh-tw/%E9%96%8B%E5%A7%8B-%E5%AE%89%E8%A3%9DGit

$ sudo apt-get install git

For those who needs GUI...

$ sudo apt-get install gitg

http://mcdn.maketecheasier.com/wp-content/uploads/2012/01/gitg-main.png

$ sudo port install git-core

For those who needs GUI...

http://gitx.frim.nl/

https://mac.github.com/

http://msysgit.github.com/

For those who needs GUI...

http://sourceforge.net/projects/gitextensions/

https://windows.github.com/