kcometen4.kss: 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/kcometen4.kss - from package: kcometen4

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

Error in other languages:
kcometen4.kss: bevel nie gevind nie
kcometen4.kss: comandă negăsită
kcometen4.kss: comando não encontrado
kcometen4.kss: commande introuvable
kcometen4.kss: command not found
kcometen4.kss: käsku ei ole
kcometen4.kss: không tìm thấy lệnh
kcometen4.kss: komanda nerasta
kcometen4.kss: Kommando nicht gefunden.
kcometen4.kss: kommandot finns inte
kcometen4.kss: komut yok
kcometen4.kss: nie znaleziono polecenia
kcometen4.kss: níor aimsíodh an t-ordú
kcometen4.kss: no se encontró la orden
kcometen4.kss: no s'ha trobat l'ordre
kcometen4.kss: opdracht niet gevonden
kcometen4.kss: parancs nem található
kcometen4.kss: perintah tidak ditemukan
kcometen4.kss: príkaz nenájdený
kcometen4.kss: příkaz nenalezen
kcometen4.kss: команда не найдена
kcometen4.kss: командата не е открита
kcometen4.kss: 命令找不到
kcometen4.kss: コマンドが見つかりません