_pivpn()
{
    local cur prev opts
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    dashopts="-a -c -d -l -qr -r -h -u -up -bk"
    opts="add clients debug list qrcode remove help uninstall update backup"
    if [ "${#COMP_WORDS[@]}" -eq 2 ]
    then
        if [[ ${cur} == -* ]] ; then
            COMPREPLY=( $(compgen -W "${dashopts}" -- "${cur}") )
        else
            COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
        fi
    fi
    return 0
}
complete -F _pivpn pivpn