oggTranscode: 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 Debian possible default full paths are:

/usr/bin/oggTranscode - from package: oggvideotools

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

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