step1.txt

1. ssh-keygen -t rsa -C "your_email@youremail.com"
2. get rsa_pub and copy to github
3. git config --global user.name "your name"
4. git config --global user.email "your_email@youremail.com"
5. git clone git@github.com:SuperRxan/gitskills.git
6. git remote add origin git@github.com:SuperRxan/gitskills.git

7. vim .git/config and change the git config values


8. git add <filename>
9. git commit -m "comment"
10. git push origin master


//working dictionary and staged 

1. use git add to add the data to staged
2. use git status to make sure all data in staged
3. use git log <--pretty=oneline> to check submit history
4. use git reset --hard HEAD^ to recovery from submitted files 


// management the modified

1. use git diff HEAD -- readme.txt  to check the diff between working area and repositiory
2. use git checkout -- readme.txt to discard changes in working directory
3. use git reset HEAD <file> to  discard changes in staged directory

// delete file in git 

to delete file totally
1. git rm test.txt
2. fit commit -m "remove test.txt"

to restore file for unexpected file 
1.  git checkout -- test.txt