git-up

#!/bin/bash

set -o errexit

BRANCH=$(git branch | grep '*' | awk '{ print $2; }')

git fetch

for branch in $(ls .git/refs/heads)
do
    if [ -f .git/refs/remotes/origin/$branch ]
    then
        if git diff --quiet $branch remotes/origin/$branch
        then
            echo "$branch is up-to-date."
        else
            git checkout $branch
            git rebase origin/$branch
        fi
    fi
done

git checkout $BRANCH