oggz-known-codecs: 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-known-codecs - from package: liboggz

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

On Debian possible default full paths are:

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

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

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