vmtoolsd: 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 CentOS possible default full paths are:

/usr/bin/vmtoolsd - from package: open-vm-tools

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

On Debian possible default full paths are:

/usr/bin/vmtoolsd - from package: open-vm-tools

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