Switch to the default branch of this git repository

git-default

#!/bin/sh
# git-default
#
# Switch to the repository's default branch

default=`git symbolic-ref refs/remotes/origin/HEAD | cut -d '/' -f 4`
current=`git branch --show-current`

if [ "x${default}" = "x${current}" ]; then
    exit 0
fi

git switch ${default}