fdo23489: 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/fdo23489 - from package: piglit

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

Error in other languages:
fdo23489: bevel nie gevind nie
fdo23489: comandă negăsită
fdo23489: comando não encontrado
fdo23489: commande introuvable
fdo23489: command not found
fdo23489: käsku ei ole
fdo23489: không tìm thấy lệnh
fdo23489: komanda nerasta
fdo23489: Kommando nicht gefunden.
fdo23489: kommandot finns inte
fdo23489: komut yok
fdo23489: nie znaleziono polecenia
fdo23489: níor aimsíodh an t-ordú
fdo23489: no se encontró la orden
fdo23489: no s'ha trobat l'ordre
fdo23489: opdracht niet gevonden
fdo23489: parancs nem található
fdo23489: perintah tidak ditemukan
fdo23489: príkaz nenájdený
fdo23489: příkaz nenalezen
fdo23489: команда не найдена
fdo23489: командата не е открита
fdo23489: 命令找不到
fdo23489: コマンドが見つかりません