zvbid: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/sbin/zvbid - from package: zvbi

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/zvbid - from package: zvbi

You may install the required package with command apt-get install {package}

Error in other languages:
zvbid: bevel nie gevind nie
zvbid: comandă negăsită
zvbid: comando não encontrado
zvbid: commande introuvable
zvbid: command not found
zvbid: käsku ei ole
zvbid: không tìm thấy lệnh
zvbid: komanda nerasta
zvbid: Kommando nicht gefunden.
zvbid: kommandot finns inte
zvbid: komut yok
zvbid: nie znaleziono polecenia
zvbid: níor aimsíodh an t-ordú
zvbid: no se encontró la orden
zvbid: no s'ha trobat l'ordre
zvbid: opdracht niet gevonden
zvbid: parancs nem található
zvbid: perintah tidak ditemukan
zvbid: príkaz nenájdený
zvbid: příkaz nenalezen
zvbid: команда не найдена
zvbid: командата не е открита
zvbid: 命令找不到
zvbid: コマンドが見つかりません