wbemcli.py: 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 Debian possible default full paths are:

/usr/bin/wbemcli.py - from package: python-pywbem

You may install the required package with command apt-get install {package}

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