amshello: 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/amshello - from package: ion

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

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