oprofiled: 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:

/usr/bin/oprofiled - from package: oprofile

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

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