GitHub: setup new account, create repo, sync from linux

Create an account on GitHub
   https://github.com/join

Add an SSH key
   https://help.github.com/articles/generating-ssh-keys/

Create new repo
  https://help.github.com/articles/create-a-repo/

Install git client on linux
  yum -y install git-core

Setup username and email
  git config --global user.name 'biggie'
  git config --global user.email 'void@space.null'

Clone the new repo
  git clone git@github.com:biggie/juicy.git /tmp/juicy

Add modified files
  (some changes)
  git add .

Commit changes to local repo
  git commit -m 'Tell me what happened'

Push changes back to GitHub
  git push

Verify change logs
  git log