#include"stdio.h"

/*  comment:
    the code Version is V1.0
    Git is a version control system.
    Git is free software.

    Git COMMAND: 
	git diff readme.txt
	git status
	git add readme.txt
	git commit -m "comment"
	git log 
	git resert --hard HEAD^
 	git resert --hard ******
 	git reflog
	git diff HEAD -- readme.txt
	git cheakout -- readme.txt    //reset worker
	git reset HEAD -- readme.txt  //reset buffer
   	if want to reset file of commited you can: git reset --hard HEAD^
	git rm ***
	ssh-keygen -t rsa -C "gaojie@smile.com"
	git remote add origin  https://github.com/hamburgerBear/ubuntu16.04-tensorflow.git
	git push -u origin master
	git push origin master
	git clone https://github.com/hamburgerBear/ubuntu16.04-tensorflow.git
	...
	git branch                veiw branch
	git branch <name>         create branch
	git checkout <name>       switch branch
	git checkout -b <name>    create and switch branch
	git merge <name>          merge branch to current branch
	git branch -d <name>      delete branch

    Git is free software distributed under GPL	
 
    Git has a mutable index called stage.

    Git tracks changes of files.

int main() {
	return 0;
}