aggregartp: 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/aggregartp - from package: multicat

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

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