git使用
http://hi.baidu.com/i7521/blog/item/1223883dbae09b0ebba1674a.html
具体可简化：
ssh-keygen -t rsa -C "xxx@gmail.com"
将.ssh/id_rsa.pub拷贝到GitHub网站
#ssh git@github.com
如果配置正确，显示
ERROR: Hi xxx! You've successfully authenticated, but GitHub does not provide shell access
Connection to github.com closed.
# git config --global user.name "xx"
# git config --global user.email xxx@gmail.com
到项目目录下面：
git add .
git commit -m "your first information"
git remote add origin git@github.com:xxx/new-project.git
git push origin master
更新：
# git commit -a -m "update information"
# git push origin master
