kluppe: 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/kluppe - from package: kluppe

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

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