drbl-collect-mac: 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/drbl-collect-mac - from package: drbl

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

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