g15ladi: 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/g15ladi - from package: laditools

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

Error in other languages:
g15ladi: bevel nie gevind nie
g15ladi: comandă negăsită
g15ladi: comando não encontrado
g15ladi: commande introuvable
g15ladi: command not found
g15ladi: käsku ei ole
g15ladi: không tìm thấy lệnh
g15ladi: komanda nerasta
g15ladi: Kommando nicht gefunden.
g15ladi: kommandot finns inte
g15ladi: komut yok
g15ladi: nie znaleziono polecenia
g15ladi: níor aimsíodh an t-ordú
g15ladi: no se encontró la orden
g15ladi: no s'ha trobat l'ordre
g15ladi: opdracht niet gevonden
g15ladi: parancs nem található
g15ladi: perintah tidak ditemukan
g15ladi: príkaz nenájdený
g15ladi: příkaz nenalezen
g15ladi: команда не найдена
g15ladi: командата не е открита
g15ladi: 命令找不到
g15ladi: コマンドが見つかりません