noroff: 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/noroff - from package: noweb

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

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