fdo23670-drawpix_stencil: 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/fdo23670-drawpix_stencil - from package: piglit

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

Error in other languages:
fdo23670-drawpix_stencil: bevel nie gevind nie
fdo23670-drawpix_stencil: comandă negăsită
fdo23670-drawpix_stencil: comando não encontrado
fdo23670-drawpix_stencil: commande introuvable
fdo23670-drawpix_stencil: command not found
fdo23670-drawpix_stencil: käsku ei ole
fdo23670-drawpix_stencil: không tìm thấy lệnh
fdo23670-drawpix_stencil: komanda nerasta
fdo23670-drawpix_stencil: Kommando nicht gefunden.
fdo23670-drawpix_stencil: kommandot finns inte
fdo23670-drawpix_stencil: komut yok
fdo23670-drawpix_stencil: nie znaleziono polecenia
fdo23670-drawpix_stencil: níor aimsíodh an t-ordú
fdo23670-drawpix_stencil: no se encontró la orden
fdo23670-drawpix_stencil: no s'ha trobat l'ordre
fdo23670-drawpix_stencil: opdracht niet gevonden
fdo23670-drawpix_stencil: parancs nem található
fdo23670-drawpix_stencil: perintah tidak ditemukan
fdo23670-drawpix_stencil: príkaz nenájdený
fdo23670-drawpix_stencil: příkaz nenalezen
fdo23670-drawpix_stencil: команда не найдена
fdo23670-drawpix_stencil: командата не е открита
fdo23670-drawpix_stencil: 命令找不到
fdo23670-drawpix_stencil: コマンドが見つかりません