NoiseFilterSGolay: 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/NoiseFilterSGolay - from package: topp

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

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