push-pop-texture-state: 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/push-pop-texture-state - from package: piglit

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

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