roarvorbis: command not found

Have You tried accessing the binary with the full path?

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/roarvorbis - from package: roarclients

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