Git remote management

To list all remotes

git remote -v

To rename remotes

git remote rename oldname newname

To push all branches to all remotes:

git remote | xargs -L1 git push --all

Or if you want to push a specific branch to all remotes: Replace master with the branch you want to push.

git remote | xargs -L1 -I R git push R master

(Bonus) To make a git alias for the command:

git config --global alias.pushall '!git remote | xargs -L1 git push --all'

Running git pushall will now push all branches to all remotes.