vp: 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/vp - from package: atfs

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