aelcf: 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/aelcf - from package: aegis

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

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