Change default behavior for minikube CLI on `profile` command

minikube_profile.sh

function minikube() {
    if [[ $1 == "profile" ]]; then
        case $2 in
            list )
                current=`grep -oP '(?<="profile": ")[^"]*' $HOME/.minikube/config/config.json`
                profiles=`ls -1 $HOME/.minikube/profiles`
                echo -n "* $current"
                if [[ '' == `echo $profiles|grep $current` ]]; then
                    echo -n " (not created)"
                fi  
                echo ""; echo ${profiles/$current} |xargs -n 1 echo " " 
                ;;  
            set )
                command minikube profile "${@:3:4}"
                ;;  
            * ) echo -e "This is used to run and manage multiple minikube instance.\nYou can return to the default minikube profile by running \`minikube profile set default\`\n\nUsage:\n  minikube profile [command]\n\nAvailable Commands:\n  set\t\tSets the current minikube profile\n  list\t\tLists the profiles available\n\n$(minikube help profile |tail -12)" 
                ;;  
        esac
    else
        command minikube "$@"
    fi  
}

OSX doesn't have the -P flag for grep anymore, just a heads up