_koha-zebra()

{

    local cur opts substract

    COMPREPLY=()

    _get_comp_words_by_ref cur

    opts="--start --stop --restart --status --quiet -q --help -h"

    # Build a list of the already used option switches

    for (( i=0; i < ${#COMP_WORDS[@]}-1; i++ )); do

        if [[ ${COMP_WORDS[i]} == -* ]]; then

            case ${COMP_WORDS[i]} in

                --start) _koha_list_cmd ; return 0 ;;

                 --stop) _koha_list_cmd ; return 0 ;;

              --restart) _koha_list_cmd ; return 0 ;;

               --status) _koha_list_cmd ; return 0 ;;

                 --help) COMPREPLY=() ; return 0 ;; # no more completions

                     -h) COMPREPLY=() ; return 0 ;; # no more completions

                --quiet) # filter the other quiet switches and go on

                    substract="$substract -e -q"; ;;

                -q)      # filter the other quiet switches and go on

                    substract="$substract -e --quiet"; ;;

            esac

            substract="$substract -e ${COMP_WORDS[i]}"

        fi

    done

    if [[ "$substract" != "" ]]; then

        opts=$( echo $opts | sed -e 's/ /\n/g'  | grep -v -x $substract )

    fi

    COMPREPLY=( $(compgen -W "$opts" -- $cur ) )

    return 0

}

complete -F _koha-zebra koha-zebra