blazer_usb: 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 CentOS possible default full paths are:

/sbin/blazer_usb - from package: nut

You may install the required package with command yum install {package}

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