msr-cpuid: command not found

Have You tried accessing the binary with the full path?

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/sbin/msr-cpuid - from package: msr-tools

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