oggz: 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 - from package: liboggz

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

On Debian possible default full paths are:

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

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

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