wbemri: 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/wbemri - from package: sblim-wbemcli

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

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