activeprogram-get: 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/activeprogram-get - from package: piglit

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

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