sg_sanitize: 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/sg_sanitize - from package: sg3-utils

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

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