bash_getops

getops.sh

function args {
        d=false;

        while getopts ":h:g:d" opt "$@"; do
                case $opt in
                        h)
                                h=$OPTARG;
                                ;;
                        g)
                                g=$OPTARG;
                                ;;
                        d)
                                d=true;
                                ;;
                        \?)
                                echo "Invalid option: -$OPTARG" >&2;
                                exit 1;
                                ;;
                        :)
                                echo "Option -$OPTARG requires an argument." >&2;
                                exit 1;
                                ;;
                esac
        done

        if [ -z $h ];then echo "please specify a remote server with -h parameter.";exit 1;fi
        if [ -z $g ];then echo "please specify a group to mirror with -g parameter.";exit 1;fi
}