rebuildd-job: 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/rebuildd-job - from package: rebuildd

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

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