It is quite simple. Follow this link to install and setup GIT: https://confluence.atlassian.com/display/BITBUCKET/Bitbucket+101 Do not create a new repository in BitBucket, as we already have couple of repositories. Do your operations on any of the two existing repositories. How to use the GIT UI: After cloning ‘web-app’ repository I get the ‘web-app’ folder on my machine. Initially it is empty since there is no source code. I added a file ‘Read Me.txt’ If I right-click on the file and select ‘Git GUI’. It will prompt me to select between ‘Creating a new repository’, ‘Importing/Cloning a new repository’, ‘Opening an existing repository’. Since we already have a repository created, select ‘Opening an existing repository’. Give the directory of ‘web-app’ folder (the folder which contains .git file). In GIT, checkin is a 2-step process: We need to add file to staging area and then add to commit. Select the ‘Read Me.txt’: Select Commit->Stage ...