raidutil: 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/raidutil - from package: raidutils

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

On Debian possible default full paths are:

/usr/sbin/raidutil - from package: dpt-i2o-raidutils

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

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