aewm++: 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/aewm++ - from package: aewm++

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

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