If there are any conflicts (for example, if someone else has changed a file you are also working with), these will be marked, and you have an opportunity to resolve the conflicts before committing this merge commit to your local repository. When you use git merge, a new commit is created on the master branch that includes all of the changes from origin plus all of your local changes. There are two ways to integrate your work back with the master branch in the original repository: one is to use git merge, and the other is to use git rebase. eBook: An introduction to programming with Bash.Try for free: Red Hat Learning Subscription. This creates a tree of revisions, and each person who checks out the project gets their own copy. Different people can take the project in different directions, each starting from potentially different branch points. Under the covers, Git associates different versions of your project with a unique identifier, which is made up of a hash of the parent node's unique identifier, and the difference between the new version and its parent node. In case you're not familiar with the intricacies of Git, here is a brief overview. Wouldn't it be great if you could use version control to save your work regularly at waypoints, and then when you have something you are ready to submit for review, you could hide all of that private drafting work and just submit a single, perfect patch? Meet git rebase -i, the perfect way to rewrite history and make everyone think that you produce perfect code the first time! What does git rebase do? Like the outtakes from movies, they are a little embarrassing and sometimes amusing. With version control, you have a pristine record of every wrong turn and correction made during the process of creating the "perfect" final product-a patch ready to submit upstream. So many wrong turns, typos to fix, quick hacks and kludges to correct later, off-by-one errors you find late in the process.
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