g15macro: 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/g15macro - from package: g15macro

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

Error in other languages:
g15macro: bevel nie gevind nie
g15macro: comandă negăsită
g15macro: comando não encontrado
g15macro: commande introuvable
g15macro: command not found
g15macro: käsku ei ole
g15macro: không tìm thấy lệnh
g15macro: komanda nerasta
g15macro: Kommando nicht gefunden.
g15macro: kommandot finns inte
g15macro: komut yok
g15macro: nie znaleziono polecenia
g15macro: níor aimsíodh an t-ordú
g15macro: no se encontró la orden
g15macro: no s'ha trobat l'ordre
g15macro: opdracht niet gevonden
g15macro: parancs nem található
g15macro: perintah tidak ditemukan
g15macro: príkaz nenájdený
g15macro: příkaz nenalezen
g15macro: команда не найдена
g15macro: командата не е открита
g15macro: 命令找不到
g15macro: コマンドが見つかりません