simple_storage: 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/simple_storage - from package: ctn

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

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