attribs: 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/attribs - from package: piglit

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

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