oggz-validate: 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/bin/oggz-validate - from package: liboggz

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

On Debian possible default full paths are:

/usr/bin/oggz-validate - from package: oggz-tools

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

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