oggsplt: 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/oggsplt - from package: mp3splt

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

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