function git_branch_name() {
branch=$(git symbolic-ref HEAD 2> /dev/null | awk 'BEGIN{FS="/"} {print $NF}')
if [[ $branch == "" ]];then
:
else
echo '- ('$branch')'
fi
}
setopt prompt_subst
PROMPT="%F{red}%n%f@%F{blue}%m%f %F{green}%~%f >> "