piglit-resume: 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/bin/piglit-resume - from package: piglit

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

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