packup: 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/packup - from package: packup

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

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