aria_pack: 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/aria_pack - from package: mariadb-server-10.0

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

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