What is the difference between origin and upstream on GitHub

Question

What is the difference between origin and upstream on GitHub   When a git branch -a command is done  some branches have a prefix of origin  remotes origin     while others have a prefix of upstream  remotes upstream

User · Answer

after cloning a fork you have to explicitly add a remote upstream  with git add remote  quot the original repo you forked from quot   This becomes your upstream  you mostly fetch and merge from your upstream  Any other business such as pushing from your local to upstream should be done using pull request

User · Answer

In a nutshell answer   origin  the fork upstream  the forked

User · Answer

This should be understood in the context of GitHub forks  where you fork a GitHub repo on GitHub before cloning that fork locally     upstream generally refers to the original repo that you have forked  see also  Definition of    downstream    and    upstream     for more on upstream term   origin is your fork  your own repo on GitHub  clone of the original repo of GitHub   From the GitHub page      When a repo is cloned  it has a default remote called origin that points to your fork on GitHub  not the original repo it was forked from    To keep track of the original repo  you need to add another remote named upstream   git remote add upstream git   github com  lt aUser gt   lt aRepo git gt     with aUser aRepo the reference for the original creator and repository  that you have forked   You will use upstream to fetch from the original repo  in order to keep your local copy in sync with the project you want to contribute to    git fetch upstream    git fetch alone would fetch from origin by default  which is not what is needed here   You will use origin to pull and push since you can contribute to your own repository   git pull git push    again  without parameters   origin  is used by default   You will contribute back to the upstream repo by making a pull request

[git] What is the difference between origin and upstream on GitHub?

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