wbemrin: 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/wbemrin - from package: sblim-wbemcli

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

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