lodbias: 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/lodbias - from package: piglit

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

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