nmlc: 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/nmlc - from package: nml

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

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