sncat: 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/sbin/sncat - from package: sn

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

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