ipmiutil: 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/ipmiutil - from package: ipmiutil

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

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