How can I see which Git branches are tracking which remote / upstream branch?

Question

I know I can do git branch --all, and that shows me both local and remote branches, but it's not that useful in showing me the relationships between them.

How do I list branches in a way that shows which local branch is tracking which remote?

Answer 1

Very much a porcelain command, not good if you want this for scripting:

git branch -vv   # doubly verbose!

Note that with git 1.8.3, that upstream branch is displayed in blue (see "What is this branch tracking (if anything) in git?")

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If you want clean output, see arcresu's answer - it uses a porcelain command that I don't believe existed at the time I originally wrote this answer, so it's a bit more concise and works with branches configured for rebase, not just merge.