Git global setup

git config --global user.name "YourNames"
git config --global user.email "YourMail"

Create a new repository

git clone git@xxx.com:open/open.git
cd open
touch README.md
git add README.md
git commit -m "add README"
git push -u origin master

Existing folder or Git repository

cd existing_folder
git init
git remote add origin git@xxx.com:open/open.git
git add .
git commit
git push -u origin master

如何删除本地分支

git branch -d branch_name

如何删除远端分支

git push origin :branch_name

远端分支已经删除，本地还出现这个分支

git fetch origin -p 

如何撤销上一次提交 高风险操作

git reset ^1 --hard