aerect: 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/aerect - from package: aegis

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

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