ae2dnaml: 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/lib/fastdnaml/bin/ae2dnaml - from package: fastdnaml

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

Error in other languages:
ae2dnaml: bevel nie gevind nie
ae2dnaml: comandă negăsită
ae2dnaml: comando não encontrado
ae2dnaml: commande introuvable
ae2dnaml: command not found
ae2dnaml: käsku ei ole
ae2dnaml: không tìm thấy lệnh
ae2dnaml: komanda nerasta
ae2dnaml: Kommando nicht gefunden.
ae2dnaml: kommandot finns inte
ae2dnaml: komut yok
ae2dnaml: nie znaleziono polecenia
ae2dnaml: níor aimsíodh an t-ordú
ae2dnaml: no se encontró la orden
ae2dnaml: no s'ha trobat l'ordre
ae2dnaml: opdracht niet gevonden
ae2dnaml: parancs nem található
ae2dnaml: perintah tidak ditemukan
ae2dnaml: príkaz nenájdený
ae2dnaml: příkaz nenalezen
ae2dnaml: команда не найдена
ae2dnaml: командата не е открита
ae2dnaml: 命令找不到
ae2dnaml: コマンドが見つかりません