GitHub forked repositories can be updated from GitHub UI or terminal.
To update from GitHub UI, you can create a “Pull Request” from the original repository to yours.
For updating using the terminal, add the original repo as a remote upstream to sync from.
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| # check that there is no remote upstream repo and add one
git remote -v
git remote add upstream https://github.com/OriginalOrgOrUser/OriginalRepo.git
# verify that upstream has been added and fetch branches and commits into upstream/master
git remote -v
git fetch upstream
# checkout fork's master branch and do a merge of upstream/master into it
git checkout master
git merge upstream/master
# push the changes to have your master branch
git push
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