built-in-constants: 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/built-in-constants - from package: piglit

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

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