arb-quads-follow-provoking-vertex: 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/arb-quads-follow-provoking-vertex - from package: piglit

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

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