Create a repository
cd /home/protected/
mkdir repos && cd repos
Replace 'repos' with whatever you want to name your repository.
git init --bare
you should see:
Initialized empty Git repository in /home/protected/repos/.git/
Clone a repository
git clone username_sitename@ssh.phx.nearlyfreespeech.net:/home/protected/repos/
Add files to commit queue
git add file
Commit added files queue to local repository
git commit -m "commit message"
Push updates to original repository
git push
Pull updates from original repository
git pull