amd_seamless_cubemap_per_texture: 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/amd_seamless_cubemap_per_texture - from package: piglit

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

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