decode_teergrube: 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/decode_teergrube - from package: sugarplum

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

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