vtdriverinfo: 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/vtdriverinfo - from package: libvpb0

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

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