$ git add hello.py $ git commit -m "add coding: utf-8" [dev bd6ae48] add coding: utf-8 1 file changed, 1 insertion(+) $ git push origin dev To git@github.com:michaelliao/learngit.git ! [rejected] dev -> dev (non-fast-forward) error: failed to push some refs to 'git@github.com:michaelliao/learngit.git' hint: Updates were rejected because the tip of your current branch is behind hint: its remote counterpart. Merge the remote changes (e.g. 'git pull') hint: before pushing again. hint: See the 'Note about fast-forwards' in 'git push --help' for details.
$ git pull remote: Counting objects: 5, done. remote: Compressing objects: 100% (2/2), done. remote: Total 3 (delta 0), reused 3 (delta 0) Unpacking objects: 100% (3/3), done. From github.com:michaelliao/learngit fc38031..291bea8 dev -> origin/dev There is no tracking information for the current branch. Please specify which branch you want to merge with. See git-pull(1) for details
git pull <remote> <branch>
If you wish to set tracking information for this branch you can do so with: