vtdeviceinfo: 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/vtdeviceinfo - from package: libvpb0

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

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