sraw: 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/sraw - from package: scsitools

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

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