Clone a repository
Cloning refers to making a copy of a repository (e.g. https://github.com/bbc/vjdata.24555.cqcfsa) to your local machine - so you can have access to the code on your own pc.
git clone git@github.com:bbc/vjdata.24555.cqcfsa.git

Initiate a repository from scratch
Requires an existing folder whose changes you want to track (called the 'working directory') This command will create a .git folder inside the directory, which is responsible tracking the changes your are making.

• cd into the directory
• git init

Check what files have been modified locally
git status

Create a branch to work on a new feature
git checkout -b <your-branch-name>

Add a single file to the stage
git add <filename>

Add all files to a the stage
git add .

Commit staged files
git commit -m <your-commit-message-goes-here>

Push the local branch you created to Github
git push origin <your-branch-name>

Push changes after remote branch has been created
git push

Merge a branch into your branch
git merge <branch name

Get latest details about branches
git fetch origin

I've made a mistake, and I want to overrite my local work with what's on master
git fetch origin git reset --hard origin/master

Resource: https://education.github.com/git-cheat-sheet-education.pdf