导入本体目录到git，即在项目的根目录下执行以下命令：

1、git init //初始化项目，执行完此命令后会生成一个.git文件夹
2、git add . //将本地项目所有文件添加到git管理
3、git commit -m "提交描述" //本地提交
4、git remote add origin 刚刚新建的Github地址url //将本地项目与远程git仓库关联
5、git push -u origin master //远程提交；如果出现错误，用这个命令git push -f origin master，强制将本地项目push到远程仓库。

下载checkout：

1、git clone /path/to/repository   或者   git clone username@host:/path/to/repository

身份说明：

1、git config --global user.name "your name"
2、git config --global user.email "your_email@youremail.com"

检查状态：

1、git status

所有命令：

$ git –help
usage: git [–version] [–help] [-C <path>] [-c name=value]
[–exec-path[=<path>]] [–html-path] [–man-path] [–info-path]
[-p | –paginate | –no-pager] [–no-replace-objects] [–bare]
[–git-dir=<path>] [–work-tree=<path>] [–namespace=<name>]
<command> [<args>]

start a working area (see also: git help tutorial)
clone — Clone a repository into a new directory
init — Create an empty Git repository or reinitialize an existing one

work on the current change (see also: git help everyday)
add — Add file contents to the index
mv — Move or rename a file, a directory, or a symlink
reset — Reset current HEAD to the specified state
rm — Remove files from the working tree and from the index

examine the history and state (see also: git help revisions)
bisect — Use binary search to find the commit that introduced a bug
grep — Print lines matching a pattern
log — Show commit logs
show — Show various types of objects
status — Show the working tree status

grow, mark and tweak your common history
branch — List, create, or delete branches
checkout — Switch branches or restore working tree files
commit — Record changes to the repository
diff — Show changes between commits, commit and working tree, etc
merge — Join two or more development histories together
rebase — Reapply commits on top of another base tip
tag — Create, list, delete or verify a tag object signed with GPG

collaborate (see also: git help workflows)
fetch — Download objects and refs from another repository
pull — Fetch from and integrate with another repository or a local branch
push — Update remote refs along with associated objects

‘git help -a’ and ‘git help -g’ list available subcommands and some
concept guides. See ‘git help <command>’ or ‘git help <concept>’
to read about a specific subcommand or concept.