BitBucket is an external source code repository server that hosts our shared code. Our repositories use Git as the version control program to keep track of file changes. The idea is you make changes to code on your local machine then share your code with everyone else by uploading to BitBucket.
The instructions below guide you step-by-step in uploading files to BitBucket using the commandline. Git is one of the most popular version control programs but it is not easy for beginners. If you want to do something that deviates from these steps, consult a git reference. Once you understand the basics of the git workflow, you can use a GUI program which can combine multiple steps in a single click.