vmwarectrl: command not found

Have You tried accessing the binary with the full path?

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/vmwarectrl - from package: xserver-xorg-video-vmware

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