Default behavior of “git push” without a branch specified

Question

I use the following command to push to my remote branch:

git push origin sandbox

If I say

git push origin

Answer 1

I just put this in my .gitconfig aliases section and love how it works:

pub = "!f() { git push -u ${1:-origin} `git symbolic-ref HEAD`; }; f"

Will push the current branch to origin with git pub or another repo with git pub repo-name. Tasty.