wbemdi: 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/wbemdi - from package: sblim-wbemcli

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

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