already exists on the remote side.
--all::
- Instead of naming each ref to push, specifies that all
- refs under `refs/heads/` be pushed.
+ Push all branches (i.e. refs under `refs/heads/`); cannot be
+ used with other <refspec>.
--prune::
Remove remote branches that don't have a local counterpart. For example
configured for the current branch).
`git push origin`::
- Without additional configuration, works like
- `git push origin :`.
+ Without additional configuration, pushes the current branch to
+ the configured upstream (`remote.origin.merge` configuration
+ variable) if it has the same name as the current branch, and
+ errors out without pushing otherwise.
+
The default behavior of this command when no <refspec> is given can be
configured by setting the `push` option of the remote, or the `push.default`