Github setup

// Adding a local repository to remote

git init
git add .
git commit -m "First Commit"
create the repository on github and copy the url
git remote add origin #URL
git remote -v 	//to confirm the repositories are linked
git push origin master

//to fetch from remote
git clone #URL
git pull origin master
git checkout -- .  // discard unstaged changes

//to create a SSH key
use git bash
type ssh-keygen
accept the default location
enter passphrase
cat .ssh/id_rsa.pub
right click on top of cmd windows and edit->mark. then select the text and edit->copy
copy to github-> Settings -> SSH -> new SSH

//change git remote repo
git remote set-url origin #url

//checkout previous commit
git log 	// to see previous file
git checkout #number

//Use Vim
press a to start typing
press esc. type :wq! to save

// command useful tools
to copy a sentence from cmd, highlight it and press right click at the same time