g15daemon: 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/sbin/g15daemon - from package: g15daemon

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

Error in other languages:
g15daemon: bevel nie gevind nie
g15daemon: comandă negăsită
g15daemon: comando não encontrado
g15daemon: commande introuvable
g15daemon: command not found
g15daemon: käsku ei ole
g15daemon: không tìm thấy lệnh
g15daemon: komanda nerasta
g15daemon: Kommando nicht gefunden.
g15daemon: kommandot finns inte
g15daemon: komut yok
g15daemon: nie znaleziono polecenia
g15daemon: níor aimsíodh an t-ordú
g15daemon: no se encontró la orden
g15daemon: no s'ha trobat l'ordre
g15daemon: opdracht niet gevonden
g15daemon: parancs nem található
g15daemon: perintah tidak ditemukan
g15daemon: príkaz nenájdený
g15daemon: příkaz nenalezen
g15daemon: команда не найдена
g15daemon: командата не е открита
g15daemon: 命令找不到
g15daemon: コマンドが見つかりません