wbemai: 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/wbemai - from package: sblim-wbemcli

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

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