vpfp-generic: 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 CentOS possible default full paths are:

/usr/lib64/piglit/bin/vpfp-generic - from package: piglit

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

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