Auto-track a git branch

git-track

#!/bin/sh

# Sets up auto-tracking of a remote branch with same base name.
# Can set up "git track" so it feels built-in:
# git config --global --add alias.track '!git-track' 
#
branch=$(git branch 2>/dev/null | grep ^\*)
[ x$1 != x ] && tracking=$1 || tracking=${branch/* /}

git config branch.$tracking.remote origin 
git config branch.$tracking.merge refs/heads/$tracking

echo "tracking origin/$tracking"