have lliurex-access-control-cli &&
_lliurex-access-control-cli() 
{
    local cur prev opts base
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"

    #
    #  The basic options we'll complete.
    #
    opts="currentconfig lockgroup unlockgroup disablecontrolgroup enablecontrolgroup lockuser unlockuser disablecontroluser enablecontroluser removeuserfromlist removeuserlist setcenter removecenter disablecontrolcenter enablecontrolcenter help"

    case "${prev}" in 
        currentconfig)
            local running="groups users center all"
            COMPREPLY=( $(compgen -W "${running}" -- ${cur}) )
            return 0
            ;;
        lockgroup | unlockgroup)
            local groups="students teachers"
            COMPREPLY=( $(compgen -W "${groups}" -- ${cur}) )
            return 0
            ;;
        *)
           COMPREPLY=($(compgen -W "${opts}" -- ${cur}))  
           return 0
           ;;
    esac
}
[ "$have" ] && complete -F _lliurex-access-control-cli lliurex-access-control-cli