notQttest: 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/notQttest - from package: libnxcl-bin

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

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