git clone (address)
git config --global user.name"You Name"
git config --global user.email "email@example.com"
创建版本库
mkdir learngit
cd learnait
pwd
把目录改成git版本库
git init
常用命令
git add
git commit -m "wrote a readme file"
例子：
$ git add file1.txt
$ git add file2.txt file3.txt
$ git commit -m "add 3 files."