ng-latin: 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/ng-latin - from package: ng-latin

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

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