snimpy: command not found

Have You tried accessing the binary with the full path?

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/snimpy - from package: snimpy

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