upscode2: 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/upscode2 - from package: nut

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

Error in other languages:
upscode2: bevel nie gevind nie
upscode2: comandă negăsită
upscode2: comando não encontrado
upscode2: commande introuvable
upscode2: command not found
upscode2: käsku ei ole
upscode2: không tìm thấy lệnh
upscode2: komanda nerasta
upscode2: Kommando nicht gefunden.
upscode2: kommandot finns inte
upscode2: komut yok
upscode2: nie znaleziono polecenia
upscode2: níor aimsíodh an t-ordú
upscode2: no se encontró la orden
upscode2: no s'ha trobat l'ordre
upscode2: opdracht niet gevonden
upscode2: parancs nem található
upscode2: perintah tidak ditemukan
upscode2: príkaz nenájdený
upscode2: příkaz nenalezen
upscode2: команда не найдена
upscode2: командата не е открита
upscode2: 命令找不到
upscode2: コマンドが見つかりません