nodm: 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/sbin/nodm - from package: nodm

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

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